Annual Business Inquiry (ABI) employment estimates available on NOMIS only relate to employees in employment. They do not include self-employment and exclude some employment such as military personnel and, below Government Office level, agricultural employees. The SW Regional Accounts includes estimates of these workers. Additionally, whilst the NOMIS figure is a headcount, the SW Regional Accounts figures are expressed as Full-time Equivalents (FTEs). The FTE is calculated based upon the number of hours full- and part-time workers work in each different industry. The SW Regional Accounts estimates are therefore a more complete picture of the labour input in each industry. The ECON|i Assistant contains further information on data sources and methods.