This dataset provides 2011 Census estimates that classify usual residents aged 16 and over in employment the week before the census in Wales by proficiency in English, by industry and by economic activity. The estimates are as at census day, 27 March 2011.

The information will help local and central government and public bodies target the provision of services and resources for the non-English-speaking population of the UK, for example teaching, interpretation and translation services.

This information is used to assign a code to the industry an individual works in using the UK Standard Industrial Classification of Economic Activities (UKSIC). This enhances the quality of occupation coding and is required at a local level to understand economic performance and analyse local labour markets. It also provides information for policy development and monitoring land use, transport and housing needs.

In order to protect against disclosure of personal information from the 2011 Census, there has been swapping of records in the Census database between different geographic areas, and so some counts will be affected. In the main, the greatest effects will be at the lowest geographies, since the record swapping is targeted towards those households with unusual characteristics in small areas.

More details on the ONS Census disclosure control strategy may be found on the http://www.ons.gov.uk/ons/guide-method/census/2011/census-data/2011-census-prospectus/new-developments-for-2011-census-results/statistical-disclosure-control/index.html[Statistical Disclosure Control] page on the ONS web site.