The figures include full- and part-time employees, as well as working business owners.
For example, Education Employment in London is 387 thousand and total Employment in London is around 5 million.
So the percentage shown is 387 / 5000 = 7.7%.
Employment numbers exclude military personnel. Owner-operated businesses, including sole traders, are included if they are registered for VAT or PAYE.
Visualization by Matt Zeunert.
2015 data for Great Britain from Nomis Employment Survey.
Northern Ireland data is for 2010, taken from this ONS spreadsheet.
UK map taken from Martin Chorley's UK-GeoJSON project.
Contains Ordnance Survey, Office of National Statistics, National Records Scotland and LPS Intellectual Property data © Crown copyright and database right [2016]. Data licensed under the terms of the Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3). Ordnance Survey data covered by OS OpenData Licence. Any further sub-licences must retain this attribution.