Retail sales, Great Britain: October 2016

A first estimate of retail sales in volume and value terms, seasonally and non-seasonally adjusted.

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Contact:
Email Melanie Richard

Release date:
17 November 2016

Next release:
15 December 2016

1. Main points

In October 2016, the quantity of goods bought (volume) in the retail industry was estimated to have increased by 7.4% compared with October 2015; all store types showed growth with the largest contribution coming from non-store retailing. This is the highest rate of growth since April 2002.

Compared with September 2016, the quantity bought was estimated to have increased by 1.9%; there were increases in all store types, except department stores. The largest contribution to growth came from textiles, clothing and footwear stores.

The underlying pattern in the retail industry continues to show strong growth with the 3 month on 3 month movement in the quantity bought increasing by 1.9%; this is the 34th consecutive period of 3 month on 3 month growth.

Average store prices (including petrol stations) fell by 0.7% in October 2016 compared with October 2015; there were falls in average store price across all store types, except petrol stations. This is the smallest decrease since July 2014 and the latest Consumer Prices Index (CPI) shows that the largest upwards pressure on inflation is from transport costs.

The amount spent (value) in the retail industry increased by 6.6% compared with October 2015 and increased by 2.1% compared with September 2016.

The amount spent online increased by 26.8% compared with October 2015 and by 1.3% compared with September 2016.

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We are publishing related data at the same time under new “theme” days. This will increase the coherence of our data releases and involve minor changes to the timing of certain publications. For more information see Changes to publication schedule for economic statistics.

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3. Things you need to know about this release

This bulletin presents estimates of the quantity bought (volume) and amount spent (value) in the retail industry for the period 2 October 2016 to 29 October 2016. Unless otherwise stated, the estimates in this release are seasonally adjusted.

The estimates are based on a monthly survey of 5,000 retailers, including all large retailers employing 100 people or more and those with annual turnover of greater than £60 million who employ 10 to 99 people. It is estimated that this survey covers approximately 95% of all known retail turnover in Great Britain.

The quality of the estimate of retail sales

Retail sales estimates are produced from the Monthly Business Survey – Retail Sales Inquiry (RSI). The timeliness of these retail sales estimates, which are published just 3 weeks after the end of each trading period, makes them an important early economic indicator. The industry as a whole is used as an indicator of how the wider economy is performing and the strength of consumer spending. Current price non-seasonally adjusted data are revised for the previous 13 published periods. More information about the data content for this release can be found in the background notes.

Revisions are an inevitable consequence of the trade-off between timeliness and accuracy. The response rate in October 2016 was 93.3% of questionnaires, accounting for 60.8% of registered turnover in the retail industry. Therefore, the estimate is subject to revisions as more data become available.

All estimates, by definition, are subject to statistical uncertainty and for the retail sales index we publish the standard error associated with the non-seasonally adjusted estimates of year-on-year and month-on-month growth in the quantity bought as a measure of accuracy. More information on these standard errors can be found in the background notes and in the quality tables of this release.

We are continually working on methodological changes to improve the accuracy of the retail sales estimates; progress on these can be found on the continuous improvement page.

The datasets offer different ways to access the data, they include:

  • non-seasonally adjusted and seasonally adjusted volume and value indexes by industry
  • year-on-year and month-on-month growth rates by industry
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4. Main figures

At a glance

In October 2016:

the quantity bought in the retail industry (volume):

  • increased by 7.4% compared with October 2015; the 42nd consecutive period of year-on-year growth and the largest year-on-year growth since April 2002
  • increased by 1.9% compared with September 2016

the amount spent (value):

  • increased by 6.6% compared with October 2015; the largest year-on-year increase since January 2011
  • increased by 2.1% compared with September 2016

In the 4 week reporting period during October 2016, the amount spent in the retail industry was £30.8 billion (non-seasonally adjusted).

This compares with:

  • £36.1 billion in the 5 week reporting period for September 2016
  • £28.9 billion in the 4 week reporting period for October 2015

This equates to an average weekly spend of:

  • £7.7 billion in October 2016
  • £7.2 billion in September 2016 and
  • £7.2 billion in October 2015
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5. How have the 4 main sectors performed?

The retail industry is divided into 4 retail sectors:

  • predominantly food stores (for example, supermarkets, specialist food stores and sales of alcoholic drinks and tobacco)
  • predominantly non-food stores (for example, non-specialised stores such as department stores, textiles, clothing and footwear, household goods and other stores)
  • non-store retailing (for example, mail order, catalogues and market stalls)
  • stores selling automotive fuel (petrol stations)

Figure 1 shows that for every pound spent in the retail industry:

  • 40 pence was spent in food stores
  • 43 pence in non-food stores
  • 8 pence in non-store retailing
  • 9 pence in stores selling automotive fuel

Using these as weights, along with the year-on-year growth rates, we can calculate how each sector contributed to the total year-on-year growth in the quantity bought.

In October 2016 compared with October 2015, all main retail sectors saw an increase in the quantity bought (volume) and amount spent (value). The largest contribution in the quantity bought and amount spent came from non-food stores.

In October 2016 compared with September 2016, all main retail sectors saw an increase in the quantity bought (volume) and amount spent (value). Again, the largest contribution in the quantity bought and amount spent came from non-food stores.

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6. Sector summary

Main points

In October 2016:

  • all store types showed increases in the quantity bought and amount spent compared with October 2015
  • the largest increases in both the quantity bought and amount spent came from non-store retailing
  • non-seasonally adjusted data show that the prices of goods sold in the retail industry (as measured by the implied price deflator) decreased by 0.7% compared with October 2015; this was the 28th consecutive month of year-on-year price falls
  • compared with September 2016 average store prices have increased by 0.4%, with the largest increase seen in petrol stations (2.2%)
  • compared with October 2015 there were falls in average store prices across all store types, except petrol stations; however, the fall of 0.7% in all retailing is the smallest fall we have seen since July 2014

More information on how the implied price deflator and other estimates in this release are calculated can be found in section 2 part iii of the background notes.

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7. Focus on growth in the 4 main retail sectors

Figure 4 shows the longer-term picture for the quantity bought in the 4 main retail store types: predominantly food stores, predominantly non-food stores, non-store retailing and petrol stations.

The chart shows the performance across the different store types and looks at how the quantity bought has changed over time. Non-store retailing, the smallest of the 4 sectors, has experienced strong growth over the period January 2010 to October 2016 and this growth has accelerated over recent periods.

The performance of food stores, non-food stores and automotive fuel, which combined account for approximately 92% of retail sales, has been more subdued. Until late 2013, the quantity bought in these store types and all retailing was somewhat flat but has then changed to one of growth.

Figure 5 shows that until late 2013, all store types saw increases in the amount spent. However, the underlying trends after this point are somewhat different for each store type. The amount spent at food stores remains relatively flat, while non-food stores and non-store retailing both increase, with the latter showing the same strong growth in the amount spent as it does in the quantity bought. However, the amount spent in petrol stations falls and only begins to increase again in late 2015 to early 2016.

The amount spent in the retail sector, is governed by 2 main factors: the quantity bought and the price at which these items were bought. Comparing Figures 5 and 6 it is evident that both the quantity bought and price have had an impact.

Figure 6 shows average store price within the 4 main store types. Average store price in petrol stations is volatile and this has more of an effect on the quantity bought and amount spent than is seen in the other store types. In October 2016, there was an increase of 4.5% compared with October 2015 in the average price at petrol stations, while the quantity bought increased by 6.0% and amount spent increased by 11.1%. The increase in price was the highest year-on-year since April 2012, while the amount spent was the highest we have seen since March 2012.

During a period of strong inflation within food stores from 2010 until 2013, the quantity bought was flat, but as prices started to fall the quantity bought increased. This is a similar picture for the non-food sector, however, there was more growth in non-food than in the food sector prior to the price fall.

Within non-store retailing, prices have remained quite flat yet the amount spent and quantity bought have risen at a fast rate despite the effect of prices.

For petrol, prices have risen strongly and then fallen away at a similar pace. The amount spent follows a similar pattern while the quantity bought remains relatively flat throughout the period. This suggests that petrol is quite an inelastic good, which means that as prices change, consumer demand remains the same. Although, during the latter part of the series where we have seen a large fall in prices, the opposite has happened and consumers have bought more.

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8. Internet sales in detail

Seasonally adjusted internet sales data are published in the Retail Sales Inquiry (RSI) internet tables and include:

  • a seasonally adjusted value index
  • year-on-year and month-on-month growth rates

Internet sales are estimates of how much was spent online through retailers across all store types in Great Britain. The reference year is 2013=100.

Main points:

  • average weekly spending online in October 2016 was £1.0 billion; this was an increase of 26.8% compared with October 2015
  • the amount spent online accounted for 15.2% of all retail spending, excluding automotive fuel, compared with 12.7% in October 2015

Table 3 shows the year-on-year growth rates for total internet sales by sector and the proportion of sales made online in each retail sector.

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9. Distribution analysis

Table 4 shows how sales varied among different-sized retailers. It shows the distribution of reported change in sales values of businesses (from the RSI sample), ranked by size of business (based on number of employees).

Businesses with 40 to 99 employees saw the largest growth in the amount spent in October 2016 compared with October 2015 (35.5%). Businesses with 100 and over employees showed an increase of 3.9%.

More information on the performance of the retail industry by store type and size can be found in the Business Analysis dataset.

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10. Economic context

Figure 7 compares a rolling 3 month period with the same period in the previous year and highlights that the volume of retail sales started to grow strongly from mid-2013. The latest data show retail sales growth of 5.9% in the 3 months to October 2016, an increase of 0.5 percentage points from the 3 months to September 2016. This was the highest rate of retail sales growth since May 2002, following the trend of strong retail sales in the last 3 years. The rolling 3 month on 3 month a year ago growth in retail sales has averaged 4.6% since the start of 2016, which is the same as the 2015 calendar year average.

Three distinct periods emerge from Figure 7. Between October 2006 and July 2008, retail sales volumes were experiencing continuous growth, although to a different degree. Growth in inflation (Consumer Prices Index CPI) was lower than average weekly earnings over most of this period; which resulted in rising real earnings, an indicator of the purchasing power of consumers. Moreover, between October 2006 and July 2008, consumer credit increased by 8.7%, which may have been a factor driving retail sales growth.

However, between August 2008 and June 2013, the volume of retail sales fluctuated between periods of contraction and expansion, which may be partly explained by the economic climate over this period, it also coincided with a reduction in consumer credit of 24.8%. Moreover, growth in average weekly earnings was lower than inflation over most of the period, which implies that earnings fell in real terms.

The most recent data shows a notable pickup in underlying sales volumes. Between July 2013 and October 2016, the price level (shown by the implied deflator) fell by 5.2%, coinciding with 15.7% growth in the volume of retail sales over this period. In addition, this upturn in spending has been accompanied by a decline in the saving ratio, from an average of 8.6% over the period 2008 to 2012, to an average of 6.4% between Quarter 1 (Jan to Mar) 2013 and Quarter 2 (Apr to June) 2016. Moreover, since June 2013, consumer credit has followed a broadly upward trend, growing by 19.6% between July 2013 and September 2016. However, prices have started to rise again. In the year to October 2016, growth in the implied retail sales deflator stood at negative 0.7%, whereas it was negative 3.4% in October 2015.

Figure 8 breaks down the growth in total retail sales into the contributions made by food and non-food stores (which includes department stores, other stores, clothing, and household goods), non-store retailing (that is, mail orders) and petrol, between October 2007 and October 2016. In the 9 year period, non-store retailing has, on average, made the largest contribution to growth and is the only component to have made a consistently positive contribution to retail sales growth. In the most recent period, all 4 components have made positive contributions to growth, with predominately food and non-food stores contributing the most and petrol making sizeable contributions since the end of 2014 at a time of historically low oil prices.

In the latest month, growth continues to be driven by a broad increase in all 4 categories, with all but petrol making significant contributions in October 2016. Petrol provided the lowest contribution to growth in the volume of retail sales since September 2015, which could reflect rising petrol prices. The highest contribution to growth was non-food stores, contributing 2.8 percentage points to growth, non-store retailing at 2.1 percentage points, food at 1.9 percentage points and petrol at 0.6 percentage points. Non-food stores performed well in October, contributing 1.7 percentage points to overall retail growth. This combination of balanced contributions is further emphasised by the October British Retail Consortium/KMPG survey, which suggested there has been improved growth across categories, with fashion and electronics performing strongly due to new product releases and new seasonal ranges.

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11. International data

The latest estimates for retail trade were published by the US Census Bureau on 15 November 2016 in its advanced retail sales estimates for October 2016. They include the amount spent in the US retail industry, including motor vehicles and parts, and food services.

The latest estimates of the volume of retail trade across the European Union, published by Eurostat on 7 November 2016 for September 2016, show the seasonally adjusted volume of retail trade in both the euro area (EA19) and EU28 when compared with August 2016. Note that an accurate comparison cannot be made as Eurostat data are calculated on a 2010 = 100 basis, while data for Great Britain are calculated on a 2013 = 100 basis.

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12. Quality and methodology

The Retail sales Quality and Methodology Information document contains important information on:

  • the strengths and limitations of the data and how it compares with related data
  • users and uses of the data
  • how the output was created
  • the quality of the output including the accuracy of the data

1. Quality

i. Basic quality information

The standard reporting periods can change over time due to the movement of the calendar. Every 5 or 6 years the standard reporting periods are brought back into line by adding an extra week. For example, January is typically a 4 week standard period but January 1986, 1991, 1996, 2002, 2008 and 2014 were all 5 week standard periods. The non-seasonally adjusted estimates will still contain calendar effects. If the non-seasonally adjusted estimates are used for analysis, this can lead to a distortion depending on the timing of the standard reporting period in relation to the calendar, previous reporting periods and how trading activity changes over time.

The non-seasonally adjusted series contain elements relating to the impact of the standard reporting period, moving seasonality and trading day activity. When making comparisons, you should focus on the seasonally adjusted estimates as these have the systematic calendar-related component removed. Due to the volatility of the monthly data, growth rates should be calculated using an average of the latest 3 months of the seasonally adjusted estimates.

When interpreting the data, the relative weighted contributions of the sectors in the “all retailing” series should be considered. Based on SIC 2007 data, total retail sales consists of: predominantly food stores 40.4%, predominantly non-food stores 42.6%, non-store retailing 7.6% and automotive fuel 9.4%.

ii. Standard error

Standard errors determine the spread of possible movements and are a means of assessing the accuracy of the non-seasonally adjusted month-on-month and year-on-year estimates of all retail sales volumes. The lower the standard error, the more confident we can be that the estimate is close to the true value for the retail population.

The standard error of year-on-year movement for “all Retailing” in October 2016 is 0.9%. This represents an increase from 0.8% in October 2015. In the last 12 months, standard errors have largely remained at this level with other fluctuations occurring in November 2015, May 2016 and June 2016 at 0.9%.

Table 5 shows the year-on-year movement for the non-seasonally adjusted chained volume measure alongside the standard error across the published sector breakdowns for October 2015 and October 2016. The differences between October 2015 and October 2016 highlight that the standard error has only increased for “household goods stores” and “textile, clothing and footwear stores” whilst it has decreased or remained stable for other sector breakdowns. The greatest decreases are seen for “automotive fuel”, “non-specialised stores”, and “other stores”.

More information on standard errors can be found in the Retail sales quality tables datasets, which are part of this release.

iii. Revisions triangles

Revisions to data provide one indication of the reliability of main indicators. Table 6 shows summary information on the size and direction of the revisions made to the volume data covering a 5 year period. Note that changes in definition and classification mean that the revisions analysis is not conceptually the same over time.

The data section of this bulletin provides these estimates and the calculations behind the averages in the table.

2. Methods

An overview of the Retail Sales Index and a number of methodological articles are also available.

i. Composition of the data

Retail sales estimates are based on financial data collected through the monthly Retail Sales Inquiry. Response rates at the time of publication are included for the current month and the 3 months prior. The response rates for those historical periods are updated to reflect the current level of response, incorporating data from late returns. There are 2 response rates included with a percentage for the amount of turnover returned and another percentage for the amount of questionnaire forms. Historical response rates are available in the quality information dataset.

ii. Seasonal adjustment

Seasonally adjusted estimates are derived by estimating and removing calendar effects (for example, Easter moving between March and May) and seasonal effects (for example, increased spending in January as a result of Christmas) from the non-seasonally adjusted (NSA) estimates. Seasonal adjustment is performed each month and reviewed each year, using the standard, widely used software, X-13-ARIMA-SEATS. Before adjusting for seasonality, prior adjustments are made for calendar effects (where statistically significant), such as returns that do not comply with the standard trading period (there is more information in the Methods, Calendar effects section), bank holidays, Easter and the day of the week on which Christmas falls.

The data collected from the retail sales survey estimate the amount of money taken through the tills of retailers; these are non-seasonally adjusted data. These data consist of 3 components:

  • “trend” which describes long-term or underlying movements within the data
  • “seasonal” which describes regular variation around the trend, that is, peaks and troughs within the time series (the most obvious is the peak in January and the fall in February)
  • “irregular” or “noise”, for example, deeper falls within the non-seasonally adjusted series due to bad weather impacting on retail sales

To ease interpretation of the underlying movements in the data, the seasonal adjustment process estimates and removes the seasonal component. It leaves a seasonally adjusted time series made up of the trend and irregular components.

In the non-seasonally adjusted RSI we see large rises in January each year and a fall in the following February, but these are not evident in the seasonally adjusted index. This peak in January is larger than the subsequent fall, but the trend and irregular components in both months are likely to be similar. This means that the movements in the unadjusted series are almost completely a result of the seasonal pattern.

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13 .Background notes

  1. What’s new

    We introduced electronic data collection for 50% of the sample in October 2016.

  2. Understanding the data

    i. Quick Guide to the Retail Sales Index

    ii. Interpreting the data

    The Retail Sales Index (RSI) is derived from a monthly survey of 5,000 businesses in Great Britain. The sample represents the whole retail sector and includes the 900 largest retailers and a representative panel of smaller businesses. Collectively all of these businesses cover approximately 90% of the retail industry in terms of turnover.

    The RSI covers sales only from businesses classified as retailers according to the Standard Industrial Classification 2007 (SIC 2007), consistent with the international NACE Rev 2 classification of industries. The retail industry is division 47 of the SIC 2007 and retailing is defined as the sale of goods to the general public for household consumption. Consequently, the RSI includes all internet businesses whose primary function is retailing and also covers internet sales by other British retailers, such as online sales by supermarkets, department stores and catalogue companies. The RSI does not cover household spending on services bought from the retail industry as it is designed to only cover goods. Respondents are asked to separate out the non-goods elements of their sales, for example, income from cafes. Consequently, online sales of services by retailers, such as car insurance, are also excluded.

    The monthly survey collects 2 figures from each sampled business: the total turnover for retail sales for the standard trading period, and a separate figure for internet sales. The total turnover will include internet sales. The separation of the internet sales figure allows an estimate relating to internet sales to be calculated.

    iii. Definitions and explanations

    The “value” or current price series records the growth of the value of sales “through the till” before any adjustment for the effects of price changes.

    The “volume” or constant price series are created by removing the effect of price changes from the value series. The Consumer Prices Index (CPI) is the main source of the information required on price changes. In brief, a deflator for each type of store (5-digit SIC) is derived by weighting together the CPI components for the appropriate commodities, the weights being based on the pattern of sales in the base year. These deflators are then applied to the value data to produce volume series.

    The “implied deflator” or “the estimated price of goods” is derived by dividing the non-seasonally adjusted value and volume data to leave a price relative. In general, this implied price deflator should be quite close to the retail component of the CPI. More information on the implied price deflator can be found in the Quick Guide to Retail Sales.

    iv. Use of the data

    The value and volume measures of retail sales estimates are widely used in private and public sector organisations, both domestically and internationally. For example, private sector institutions such as investment banks, the retail industry itself and retail groups use the data to inform decisions on the current economic performance of the retail industry. These organisations are most interested in a long-term view of the retail sector, taken from the year-on-year growth rates. Public sector institutions use the data to help inform decision and policy making. They tend to be most interested in a snapshot view of the retail industry, which is taken from the month-on-month growth rates.

    In a recent survey users found the Retail Sales Index statistics important to their work. It was found crucial for financial modelling of sectors and recognised as a timely indicator for the economy. It has been used as a comparative tool with BRC and other market sources to boost context. Practically, it has been utilised as a comparative tool for business performance and the ability to access internet retail sales has been particularly beneficial to some. On a non-industry level, the RSI was perceived as important for informing political opinions or simply for curiosity by individuals who were not necessarily utilising it as a reference for work purposes.

    The Retail Sales Index feeds into estimates of GDP in 2 ways. Firstly, it feeds into the services industries when GDP is measured from the output approach. Secondly, it is a data source used to measure household final consumption expenditure, which feeds into GDP estimates when measured from the expenditure approach.

    The data feed into the first (or preliminary) estimate of GDP, the second estimate of GDP and the third estimate, published in the quarterly national accounts.

  3. Relevant links

    A subset of the retail sales dataset will be published on our explorable datasets page. Please note the link will not work until the data are published.

    Retail sales in 2015

    Disclosure control policy

    Comparability of RSI Sales and External Indicators

    RSI Workplan

    RSI Quality and Methodology Information report

    Revisions to the Retail Sales Index

    BRC Sales Monitor October 2016

    International Measures of Retail Sales

    National Accounts Workplan

    Why is the retail sales revisions policy different from the National Accounts revisions policy?

    Impact of quarterly employment question on the monthly survey response

    Investigating the effect of quarterly collection of employee jobs data on the estimated standard error of change for total turnover on the Monthly Business Survey

    Government Statistical Service (GSS) uncertainty guidance

  4. Publication policy

    Details of the policy governing the release of new data are available from the UK Statistics Authority website.

  5. Accessing data

    The complete run of data in the tables of this statistical bulletin is available to view and download in electronic format using our Time Series Data service. You can download the complete bulletin in a choice of zipped formats, or view and download your own sections of individual series.

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Contact details for this Statistical bulletin

Melanie Richard
retail.sales.enquiries@ons.gov.uk
Telephone: +44 (0)1633 455602