# Statistical bulletin: Consumer Price Indices, October 2012

Released: 13 November 2012

## Key points

• The Consumer Prices Index (CPI) annual inflation stands at 2.7 per cent in October 2012, up from 2.2 per cent in September. University tuition fees were the largest contributor to the rise
• Food & non-alcoholic beverages was the second largest contributor to the increase, particularly potatoes, fruit and confectionery
• The CPI stands at 124.2 in October 2012 based on 2005 = 100
• The Retail Prices Index (RPI) annual inflation stands at 3.2 per cent in October 2012, up from 2.6 per cent in September. The main contributors to the change are the same as the CPI, with the addition of housing
• The RPI stands at 245.6 in October 2012 based on January 1987 = 100

## A brief description of Consumer Price Indices

Consumer price indices measure the change in the general level of prices charged for goods and services bought for the purpose of household consumption in the UK. A convenient way to understand the nature of these indices is to envisage a very large shopping basket comprising all the different goods and services typically bought by households. As the prices of individual items in this basket vary, the total cost of the basket will also vary. The CPI and RPI measure changes in this total cost.

## Consumer Prices Index (CPI)

The CPI is the main UK domestic measure of consumer price inflation for macroeconomic purposes. It forms the basis for the Government’s target for inflation that the Bank of England’s Monetary Policy Committee (MPC) is required to achieve. Since April 2011 the CPI has also been used for the indexation of benefits, tax credits and public service pensions.

This section shows the 1-month and 12-month percentage change (the amount by which the figures have increased or decreased compared with a month ago and a year ago respectively). Figure A shows the 12-month percentage change for the CPI. Table A shows the CPI index values plus the 1-month and 12-month percentage changes.

The CPI rose by 0.5 per cent between September and October this year compared with a rise of 0.1 per cent a year ago. This is the joint largest (with 2007) increase in the CPI between these two months since records began in 1996. The CPI rose by 2.7 per cent between October 2011 and October 2012.

### Figure A: CPI 12-month percentage change

#### United Kingdom

Source: Office for National Statistics

### Table A: CPI 1-month and 12-month percentage change

#### United Kingdom

Index1 (UK, 2005 = 100) Percentage change over 1 month Percentage change over 12 months

2011 Oct 121.0 0.1 5.0
Nov 121.2 0.2 4.8
Dec 121.7 0.4 4.2
2012 Jan 121.1 -0.5 3.6
Feb 121.8 0.6 3.4
Mar 122.2 0.3 3.5
Apr 122.9 0.6 3.0
May 122.8 -0.1 2.8
Jun 122.3 -0.4 2.4
Jul 122.5 0.1 2.6
Aug 123.1 0.5 2.5
Sep 123.5 0.4 2.2
Oct 124.2 0.5 2.7

#### Table notes:

1. All items Consumer Prices Index

## Consumer Prices Index (CPI): Briefing on the monthly movement between September and October 2012

This section explains the change in the CPI between the latest two months. Table B shows the 1-month percentage change for each of the CPI divisions.  Figure B shows the contribution of each division to the overall 1-month change.

The CPI rose by 0.5 per cent between September and October this year. By far the largest upward contribution to the 1-month change came from:

education: prices, overall, rose by 19.1 per cent between September and October. This is more than twice the size of the next biggest monthly increase for education prices since CPI records began in 1996. The increase was due predominantly to a significant rise in undergraduate tuition fees, where the maximum annual tuition fees for new UK and EU students in England rose to £9,000.

There were smaller though significant, upward contributions from:

clothing & footwear: prices, overall, rose by 1.2 per cent between September and October. This was the largest increase for clothing prices between these two months since records began.

food & non-alcoholic beverages: prices, overall, rose by 0.5 per cent between September and October this year. Sugar, jam, syrups, chocolate & confectionery were the main contributors, followed by meat, fish and fruit.

recreation & culture: where there were upward pressures to the monthly change from other recreational items, and cultural services and package holidays.

There were minor downward contributions from furniture, household equipment & maintenance, and transport.

### Table B: CPI 1-month percentage change to October 2012

#### United Kingdom

Percentage change
Food & non-alcoholic beverages 0.5
Alcohol & tobacco 0.4
Clothing & footwear                         1.2
Housing & household services 0.1
Furniture & household goods -0.6
Health 0.2
Transport -0.1
Communication 0.2
Recreation & culture 0.4
Education 19.1
Restaurants & hotels 0.0
Miscellaneous goods & services 0.0
CPI All Items 0.5

### Figure B: Contributions to the CPI 1-month percentage change (in total 0.5 per cent): October 2012

#### United Kingdom

Source: Office for National Statistics

#### Notes:

1. Individual contributions may not sum to the total due to rounding

## Consumer Prices Index (CPI): Briefing on the change to the 12-month rate between September and October 2012

This section explains how the CPI 12-month rate (this month’s CPI compared with the CPI for the same month a year ago) has changed between the latest two months. Figure C shows the contribution of each CPI division to the overall change in the 12-month rate.

The change in the CPI 12-month rate is calculated by comparing the price changes between the latest two months and the same two months a year ago. This year the CPI rose by 0.5 per cent between September and October compared with a rise of 0.1 per cent between the same two months a year ago. The 1-month movement was therefore 0.4 percentage points higher this year and this led to the CPI 12-month rate rising from 2.2 per cent in September to 2.7 per cent in October 2012 (the difference being due to rounding).

The most significant upward contributions to the change in the CPI 12-month rate between September and October 2012 came from:

education: prices, overall, rose by 19.1 per cent between September and October 2012, compared with a more modest increase of 2.7 per cent between the same two months a year ago. This contributed 0.32 percentage points to the increase in the CPI 12-month rate. The increase was due predominantly to a significant rise in undergraduate tuition fees, where the maximum annual tuition fees for new UK and EU students in England rose to £9,000.

food & non-alcoholic beverages: prices, overall, rose by 0.5 per cent between September and October this year, compared with a fall of 0.9 per cent between the same two months a year ago. This contributed 0.16 percentage points to the increase in the CPI 12-month rate. The main upward pressures came from potatoes (where there have been reports of low yields as a result of the poor weather in recent months), fruit, and confectionery. In the case of the last of these, a number of confectionery products have reduced in size. This is treated as a price increase in the CPI and RPI as consumers get less for their money.

transport: prices, overall, fell at a slower rate between September and October this year than they did a year ago, resulting in an upward contribution of 0.08 percentage points to the CPI 12-month rate. The largest upward pressures came from the purchase of second hand vehicles and air fares. A small fall in the price of motor fuels partially offset these upward contributions. Petrol prices fell by 0.9 pence per litre between September and October this year compared with a fall of 0.5 pence per litre a year ago. Diesel prices fell by 0.6 pence per litre this year compared with a rise of 0.3 pence per litre a year ago.

The most significant downward contributions to the change in the CPI 12-month rate between September and October 2012 came from:

housing & household services: prices, overall, rose by 0.1 per cent between September and October this year compared with a rise of 0.6 per cent between the same two months a year ago. This contributed -0.06 percentage points to the change in the CPI 12-month rate. The majority of the downward pressure came from electricity and gas bills. In the case of the former, there were some price reductions this month. In the case of both, price increases introduced in October 2011 fell out of the index calculation. The widely reported price increases for many utility bills were not introduced in time to impact on the October index.

recreation & culture: prices, overall, rose by 0.4 per cent between September and October 2012, compared with a larger rise of 0.7 per cent between the same two months a year ago. This contributed -0.05 percentage points to the change in the CPI 12-month rate. The largest contribution to the downward pressure came from games, toys & hobbies – particularly computer games.

### Figure C: Contributions to the change in the CPI 12-month rate: October 2012

#### United Kingdom

Source: Office for National Statistics

#### Notes:

1. Individual contributions may not sum to the total due to rounding

## Consumer Prices Index (CPI): Briefing on the 12-month rate to October 2012

This section explains how the CPI this month has changed compared with the same month a year ago. Table C shows the 12-month percentage change for each of the CPI divisions.  Figure D shows the contribution of each division to the overall 12-month rate.

The most significant upward contributions to the CPI 12-month rate to October 2012 came from:

transport: which contributed 0.49 percentage points, with the main upward effects coming from air fares and motor fuels.

food & non-alcoholic beverages: which contributed 0.39 percentage points, with the upward effects spread across most food and non-alcoholic drink categories.

education: which contributed 0.38 percentage points, with the upward effect coming predominantly from university tuition fees

restaurants & hotels: which contributed 0.33 percentage points, with the majority of the contribution coming from catering services.

### Table C: CPI 12-month rate to October 2012

#### United Kingdom

Percentage change
Food & non-alcoholic beverages 3.4
Alcohol & tobacco 6.5
Clothing & footwear                         -0.1
Housing & household services 1.7
Furniture & household goods 1.7
Health 2.5
Transport 3.1
Communication 3.7
Recreation & culture 0.8
Education 19.7
Restaurants & hotels 2.9
Miscellaneous goods & services 1.9
CPI All Items 2.7

### Figure D: Contributions to the CPI 12-month rate (in total 2.7 per cent): October 2012

#### United Kingdom

Source: Office for National Statistics

#### Notes:

1. Individual contributions may not sum to the total due to rounding

## Other measures of Consumer Prices Index (CPI) Inflation

This section shows for other measures of CPI inflation the percentage change over 12-months and the change in the 12-month rate between last month and this month (ie the amount by which the indices have increased or decreased over the year and the change in that relationship between the latest two months).

Figure E compares the 12-month percentage change for the CPI with the 12-month percentage change for these other measures.

#### Consumer Prices Index excluding indirect taxes (CPIY)

The CPIY is the same as the all items CPI except that it excludes price changes which are directly due to changes in indirect taxation (such as VAT).

In the year to October, the CPIY rose by 2.7 per cent, up from 2.1 per cent in September.  Therefore the CPIY 12-month rate rose by 0.6 percentage points between September and October compared with an increase of 0.5 percentage points in the CPI 12-month rate between the same two months. The larger rise in the CPIY 12-month rate is mainly due to:

education: had a larger upward effect on the CPIY than CPI. The increase in tuition fees had a bigger influence on CPIY due to its higher weight in this index.

transport: had a larger upward effect on the CPIY than CPI. This is due to the larger weight of the second hand cars and air fares in the CPIY resulting in larger upward contributions from these components.

#### Consumer Prices Index at constant tax rates (CPI-CT)

The CPI-CT is the same as the CPI except that tax rates are kept constant at the rates they were in the base period (currently January 2012) and vehicle excise duty and television licence fees are excluded.

In the year to October, CPI-CT rose by 2.4 per cent, up from 2.0 per cent in September. Therefore, the CPI-CT rose by 0.4 percentage points compared to a rise of 0.5 percentage points for the CPI. The smaller rise in the CPI-CT 12-month rate than the CPI 12-month rate is mainly due to the impact of rounding.

### Figure E: CPI measures of inflation 12-month percentage change

#### United Kingdom

Source: Office for National Statistics

## Retail Prices Index (RPI) compared with Consumer Prices Index (CPI)

The RPI is the most long standing measure of inflation in the UK. The RPI, like the CPI, measures inflation with reference to the changing cost of a fixed basket of goods and services.

This section compares the percentage change over 12-months for the RPI with the comparable change for the CPI and explains any significant differences between the two. Figure F charts the 12-month rates for the CPI and RPI.

In the year to October, the all items RPI rose by 3.2 per cent, up from 2.6 per cent in September. The RPI 12-month rate has therefore increased by 0.6 percentage points between September and October compared with a rise of 0.5 percentage points in the CPI 12-month rate between the same two months.

### Figure F: RPI and CPI 12-month percentage change

#### United Kingdom

Source: Office for National Statistics

Table 5 at the back of the bulletin identifies the main factors contributing to the differences between the 12-month rates for the CPI and the RPI. The larger rise in the RPI 12-month rate than the CPI 12-month rate between September and October is mainly due to:

Mortgage interest payments: which increased the RPI 12-month rate in October by 0.1 percentage points but is excluded from the CPI.

## Other measures of Retail Prices Index (RPI) Inflation

This section shows for other measures of RPI inflation the percentage change over 12-months and the change in the 12-month rate between last month and this month (ie the amount by which the indices have increased or decreased over the year and the change in that relationship between the latest two months).

Figure G compares the 12-month percentage change for the RPI with the 12-month percentage change for these other measures.

#### All items Retail Prices Index excluding mortgage interest payments (RPIX)

The RPIX is the same as the all items RPI except for mortgage interest payments, which are excluded from RPIX.

In the year to October, the RPIX rose by 3.1 per cent, up from 2.6 per cent in September. Therefore the RPIX 12-month rate rose by 0.5 percentage points between September and October compared with an increase of 0.6 percentage points in the RPI 12-month rate between the same two months. This was due to the upwards contribution from mortgage interest payments of 0.1 percentage points in the RPI.

#### All items Retail Prices Index excluding mortgage interest payments and indirect taxes (RPIY)

The RPIY is the same as the all items RPI except that it excludes price changes which are directly due to changes in indirect taxation (such as VAT) and mortgage interest payments.

In the year to October, the RPIY rose by 3.1 per cent, up from 2.6 per cent in September. Therefore the RPIY 12-month rate rose by 0.5 percentage points between September and October compared with an increase of 0.6 percentage points in the RPI 12-month rate between the same two months. The smaller rise in the RPIY 12-month rate than the RPI 12-month rate is mainly due to:

fuel & light: had a larger downward effect on the RPIY than RPI. This is due to the larger weight of this component in RPIY.

housing: had a larger upward effect on the RPI than the RPIY. This is due to the upward pressure from the rise in mortgage interest payments which did not impact on the RPIY.

rounding: this emphasises the upward movement in the RPI compared with the upward movement in the RPIY.

These effects were partially offset by:

household services: the increase in tuition fees had a larger effect on the RPIY than the RPI. This is due to the larger weight of this component in the RPIY.

### Figure G: RPI measures of inflation 12-month percentage change

#### United Kingdom

Source: Office for National Statistics

## Notable Consumer Prices Index (CPI) and Retail Prices Index (RPI) Records

This section highlights notable movements and trends in the CPI and RPI and places them in historical context.

### Notable CPI records

#### United Kingdom

 Furniture, household equipment & Annual rate +1.7%, same as last month maintenance Last lower in December 2008 (+0.8%) Education Annual rate +19.7%, up from +3.2% last month Never higher Electricity, gas & other fuels Annual rate -1.1%, down from +0.4% last month Lowest since November 2010 (-2.3%)

### Notable RPI records

#### United Kingdom

 Catering Annual rate +2.9%, down from +3.0% last month Also +2.9% in March 2010 and April 2010 Last lower in February 2010 (+2.8%) Fuel & Light Annual rate -1.1%, down from +0.4% last month Lowest since November 2010 (-1.9%) Household services Annual rate +7.6%, up from +2.8 % last month (includes university tuition fees) Highest since February 1992 (+7.7%)

## Data tables

CPI and RPI Reference Tables, October 2012: (1.29 Mb Excel sheet)  This spreadsheet pulls together the tables that were previously published in the old style Consumer Price Indices Statistical Bulletin and Focus on Consumer Prices publication. A correlation index is included to show the old and new naming conventions and where the tables were previously published, for example: RPI All items 1947-2012 or RP02 & Table 4.1 in Focus is now the new Table 20.

## Background notes

1. National Statistician's consultation on options for improving the Retail Prices Index

On 8 October the National Statistician launched a consultation inviting views on options for amending the way the RPI is constructed at the lowest level of aggregation. The consultation also includes a proposal to change the way private housing rental prices are measured in the RPI and CPI through the use of a new data source. For more details (including how to respond) see the consultation page. The consultation closes on 30 November.

2. New inflation index including owner occupiers’ housing costs to be launched

On 2 November, the ONS announced that a new additional measure of consumer price inflation will be launched which includes owner occupiers’ housing (OOH) costs.
The new index, which will initially be known as CPIH, will measure OOH costs using the rental equivalence method. This method uses changes in rental prices to measure the costs of owning, living in and maintaining a property. CPIH will be introduced in March 2013 at the same time as the annual CPI/RPI basket of goods and services review.

ONS published its full response to the public consultation on OOH (together with the Consumer Prices Advisory Committee's annual report for 2012) on 13 November 2012.

3. Next month

Inflation for November 2011 to November 2012 will be published on 18 December 2012. CPI and RPI inflation rates between November 2011 and October 2012 were 2.5 per cent and 3.0 per cent respectively. Inflation rates for November 2011 to November 2012 will take account of price changes between October 2012 and November 2012.

4. Relevance

The CPI is the main UK domestic measure of consumer price inflation for macroeconomic purposes. It forms the basis for the Government’s target for inflation that the Bank of England’s Monetary Policy Committee (MPC) is required to achieve. Since April 2011 the CPI has also been used for the indexation of benefits, tax credits and public service pensions. The uprating is based on the 12-month change in the September CPI.

Internationally, the CPI is known as the Harmonised Index of Consumer Prices (HICP). HICPs are calculated in each Member State of the European Union, according to rules specified in a series of European regulations developed by Eurostat in conjunction with the EU Member States. HICPs are used to compare inflation rates across the European Union. Since January 1999, the HICP has also been used by the European Central Bank (ECB) as the measure of price stability across the euro area.

5. Methodology

The CPI and the RPI are compiled using the same underlying price data, based on a large and representative selection of almost 700 individual goods and services for which price movements are measured in around 150 randomly selected areas throughout the UK. Around 180,000 separate price quotations are used every month to compile the indices. The outlets in which the prices are collected are selected randomly. Expenditure weights are held constant for one year at a time.

The selection of goods and services that are priced to compile the CPI and RPI is reviewed annually. The contents of the 2012 basket are described in an article Consumer Prices Index and Retail Prices Index: the 2012 Basket of Goods and Services (274.7 Kb Pdf) . The expenditure weights used to compile the indices are also updated each year. Additional details of the updated CPI and RPI weights for 2012 are available from the National Statistics website in an article published on 24 April 2012 entitled Consumer Prices Index and Retail Prices Index: Updating Weights for 2012.

Rates of change for the CPI are calculated from unrounded index levels, rather than from the published indices, which are rounded to one decimal place. The use of unrounded indices increases the accuracy of the calculation. The unrounded index levels are available on request. By contrast, rates of change for the RPI are calculated from the published rounded indices.

6. Reliability

Once the RPI indices are published they are never revised. CPI indices are revisable although the only time the CPI all items index has been revised was when the index was re-referenced to 2005=100, which took place with the publication of the January 2006 indices.

7. Comparability

The CPI’s coverage of goods and services was extended in stages in the areas of health, education, childcare and insurance, with effect from the January 2000, 2001 and 2002 indices. In 2000, there was also a change to the population basis for the weights which was broadened from private households to include expenditure by foreign visitors and residents of institutional households. Further details can be found in a series of articles in the CPI methodology section of the Office for National Statistics website.

The official CPI series starts in 1996 but estimates for earlier periods are available back to 1988. These estimates are broadly consistent with data from 1996 but should be treated with some caution. An article about historical estimates (106 Kb Pdf) provides more detail.

RPI data are available back to 1947 but have been re-referenced on several occasions since then, generally accompanied by changes to the coverage and/or structure of the detailed sub-components. Details of these changes are given in Appendices 1 and 2 of the Consumer Price Indices Technical Manual (754.3 Kb Pdf) .

8. Other measures of inflation – main uses and methodological details

Detailed explanations of the main uses and methodology used to construct the ‘other measures of inflation’ included within this statistical bulletin and how they differ from the CPI can be found in Chapters 9 and 10 of the Consumer Price Indices Technical Manual (754.3 Kb Pdf) . In addition this article 'How ONS consumer price statistics are used' provides further details of how consumer price statistics are used more generally.

• All items Retail Prices Index (RPI): the RPI is the most long-standing general purpose measure of inflation in the UK. Historically the uses of the RPI include the indexation of various prices and incomes and the uprating of pensions, state benefits and index-linked gilts, as well as the revalorisation of excise duties. Please note, though, that since April 2011 the CPI has been used to uprate benefits, tax credits and public service pensions

The main differences between the CPI and RPI are:

• population base: CPI includes all UK private and institutional households and foreign visitors to the UK. The RPI includes private households only and excludes the highest income households and pensioner households mainly dependent on state benefits; these excluded private households account for around 13 per cent of all UK household expenditure

• item coverage: the most significant difference is that the CPI excludes a number of items relating to housing costs (such as mortgage interest payments, house depreciation and council tax) that are included in the RPI

• index methodology – formula: the CPI mainly uses the geometric mean whereas the RPI uses the arithmetic mean to combine individual prices at the first stage of aggregation

• item coding: the CPI uses a standard international classification system whereas the RPI uses a system unique to itself and not used elsewhere. The different approaches reflect the fact that the CPI is used to compare inflation rates across Europe so a standard framework is required; the RPI is mainly used within the UK only

Here is a breakdown of the differences between the CPI and RPI (62.9 Kb Pdf) annual inflation rates.

Also available is an explanation of the increased impact that the different formulae used to construct the CPI and RPI (61 Kb Pdf) had on the indices during 2010.

• All items Retail Prices Index excluding mortgage interest payments (RPIX): this index is the same as the all items RPI but it excludes the mortgage interest payments component

• All items Retail Prices Index excluding mortgage interest payments and indirect taxes (RPIY): is an index designed to measure movements in ‘core’ prices as the index excludes price changes which are directly due to changes in indirect taxation (for example VAT; excise duties on tobacco, alcohol and petrol; local authority taxation; vehicle excise duty; and television licence fees) and mortgage interest payments. The purpose of the index is to obtain a better indication of inflationary pressures at times when prices are directly influenced by government-driven changes

• Consumer Prices Index excluding indirect taxes (CPIY):  is an index designed to measure movements in ‘underlying prices’ as it excludes price changes which are directly due to changes in indirect taxation (for example VAT; excise duties on tobacco, alcohol and petrol; vehicle excise duty; and television licence fees). As with the RPIY, its main purpose is to obtain a better indication of inflationary pressures at times when prices are directly influenced by government-driven changes

• Consumer Prices Index at constant tax rates (CPI-CT): is an index where tax rates are kept constant at the rates as they were in the base period (currently January 2012) and which excludes vehicle excise duty and television licence fees. The analytical value of the CPI-CT is when it is compared with the CPI; differences in the monthly and annual rates of change between the two indices provide an indication of the impact of tax changes on the CPI

9. Accessibility

The most efficient way to access the latest CPI and RPI data and briefing on the new website is via the CPI or RPI key figures on the homepage.

In response to user feedback, we have taken the opportunity to make all CPI and RPI data available in one location. These CPI and RPI Reference Tables (1.29 Mb Excel sheet) are provided via a 'printer friendly' excel file.

To further help users, very detailed CPI data are now available including the individual price quotes and item indices that underpin the CPI. Please note that the data that are published are at a level which means that no individual retailer or service provider will be able to be identified. The data published covers January 1996 to June 2012. These data are updated once a quarter with around a two month lag with the latest CPI publication. For example, the data will next be updated when the November CPI is published on 18 December 2012, at which point the detailed data published will be extended to September 2012.

This bulletin includes the October 2012 data, collected on 9 October 2012. Future publication dates (43.6 Kb Pdf) for this Statistical Bulletin are available (now includes dates to January 2014).

The European Commission (Eurostat) releases figures for the harmonised index of consumer prices (HICP) for the month of October 2012 for EU Member States, together with an EU average, on 15 November 2012. Further information on HICP for the European Union, Eurozone and other EU Member States is available from Eurostat's HICP web page.

10. Further information

A more detailed quality report (119.3 Kb Pdf) for this statistical bulletin is available. The report assesses the CPI and RPI against standard dimensions of quality such as relevance, accuracy and accessibility. The report was last updated in December 2011.

The mini Triennial Review (1.75 Mb Pdf) of the CPI and RPI Central Collection of Prices is available.

A full description of how the CPI and RPI are compiled is given in the Consumer Price Indices Technical Manual. (754.3 Kb Pdf)

Further information on the CPI and RPI, including details of the methodology used to construct the indices, articles, historic data etc. is available on the Consumer Price Indices Taxonomy page.

11. General

Details of the policy governing the release of new data are available from the Media Relations Office. Also available is a list of the names of those given pre-release access (648 Kb Pdf) to the contents of this release.

In line with the Consumer Price Indices Pre-Release arrangements, an advanced estimate of the CPI was provided to the Governor of the Bank of England and the Chancellor of the Exchequer 3.5 working days ahead of publication. The Governor shared this information with the MPC, and officials present at the MPC policy meeting, on Wednesday 7 November 2012.

Bank and Treasury officials were informed at 5pm on the Friday before publication that an open letter was not needed this month between the Governor of the Bank of England and the Chancellor of the Exchequer.

ONS has recently published commentary, analysis and policy on 'Special events' which may affect statistical outputs. For full details go to the Special events page on the Office for National Statistics website.

During 2010, an assessment team from the UK Statistics Authority conducted a review of the Office for National Statistics’ Consumer Price Indices. Their remit was to assess compliance with the Code of Practice for Official Statistics. In December 2010, the team published their conclusions as Assessment Report 79.

While carrying out the assessment, the team also researched and published Monitoring Brief 7/2010 – Communicating Inflation.

Following this assessment and ONS’s subsequent response, the UK Statistics Authority, on 31 January 2012 confirmed the designation of the CPI and RPI as National Statistics, in accordance with the Statistics and Registration Service Act 2007 and signifying compliance with the Code of Practice for Official Statistics.

Designation can be broadly interpreted to mean that the statistics:

• meet identified user needs
• are well explained and readily accessible
• are produced according to sound methods and
• are managed impartially and objectively in the public interest

Once statistics have been designated as National Statistics it is a statutory requirement that the Code of Practice shall continue to be observed.

12. Media contact:
Tel:  Luke Croydon   + 44 (0) 845 6041858
Emergency on-call    + 44 (0) 7867 906553
Email:  media.relations@ons.gsi.gov.uk

Statistical contact:
Tel:  Richard Campbell +44 (0) 1633 651536
Email:  richard.campbell@ons.gsi.gov.uk
Email:  cpi@ons.gsi.gov.uk

CPI/RPI recorded message (available after 9.45am on release day):
Tel: + 44 (0) 1633 456961

CPI/RPI Enquiries:
Tel: + 44 (0) 1633 456900

13. Details of the policy governing the release of new data are available by visiting www.statisticsauthority.gov.uk/assessment/code-of-practice/index.html or from the Media Relations Office email: media.relations@ons.gsi.gov.uk

These National Statistics are produced to high professional standards and released according to the arrangements approved by the UK Statistics Authority.

## Statistical contacts

Name Phone Department Email
Richard Campbell +44 (0)1633 651536 Prices, ONS cpi@ons.gsi.gov.uk
Get all the tables for this publication in the data section of this publication .
Content from the Office for National Statistics.