Value added by business enterprises in the United Kingdom 2011-2018, by size

Data for years prior to 2017 are taken from different reports

The source adds the following information:
"These are estimates produced by DIW Econ, based on figures from the Structural Business Statistics Database (Eurostat). The data cover the 'non-financial business economy', which includes industry, construction, trade, and services (NACE Rev. 2 sections B to J, L, M and N), but not enterprises in agriculture, forestry and fisheries and the largely non-market service sectors such as education and health.

The following size-class definitions are applied: micro firms (0-9 persons employed), small firms (10-49 persons employed), medium-sized firms (50-249 persons employed), and large firms (250+ persons employed). The advantage of using Eurostat data is that the statistics are harmonized and comparable across countries. The disadvantage is that for some countries the data may be different from those published by national authorities."