Please see below for a summary of important quality information that you need to know before using these data.

The UK Manufacturers’ Sales by Product Survey (Prodcom) Quality and Methodology Information document contains important information on:

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

Important points about Prodcom data

  • Prodcom covers product sales by UK manufacturers. This is not the same as UK retail sales, which refers to the sales of goods by retail businesses, or consumer purchases.
  • All estimates of the value of product sales are presented at current prices, meaning that they have not been adjusted for inflation. This is important to bear in mind when comparing value changes over time.
  • Prodcom is conducted under EU regulation, which enables detailed product level data comparison across EU member states.
  • Care should be taken when comparing estimates prior to 2008 with those after 2008 due to the change in standard industrial classifications (SIC).
  • Prior to 2015, the data for minerals extracted (Division 8) was collected by the annual minerals raised inquiry (AMRI).
  • The International Steel Statistics Bureau (ISSB) provides data in respect of iron and steel statistics related to SIC 2007 industries 24.10, 24.32 and 24.33. These are included in the Prodcom statistics submitted to Eurostat, but are not published as part of our release.

Overview

The UK Manufacturers’ Sales by Product Survey (Prodcom) presents annual statistics on the value and volume of products manufactured in the UK, including the value, volume and unit values (value per unit of volume) for each product heading, where possible. Other data available by industry include total turnover, merchanted goods, work done, sales of waste products, and all other income.

The Prodcom statistics concern all manufactured products included in the agreed EU Prodcom list and the survey sample covers UK businesses active in the mining and manufacturing sectors. Data are collected via a paper questionnaire from a sample of around 21,500 businesses, covering 240 sub-sectors of the mining and manufacturing sectors and around 3,800 products.

Provisional estimates are published on our website in June and intermediates in December, 12 months after the end of the survey reference year. Final estimates are published 24 months after the end of the survey reference year.

Data are published at product and industry level in Excel and open data formats, accompanied by a statistical bulletin. A dataset is then made available for approved researchers to access via the ONS’s Virtual Microdata Laboratory (VML) and UK Data Service.

A number of government departments and other bodies use Prodcom data to analyse industry trends and inform policy decisions. These include Eurostat, the Department for Business, Energy and Industrial Strategy, business and marketing analysts, and trade associations.

Prodcom data are also used in the national accounts supply and use table, an integral part of measurement of gross domestic product (GDP). GDP is the primary measure of the overall state of a country’s economy; it is extensively reported in the media to track the UK's economic performance.

Download this methodology