The data is from the 2013 census. When using census data we can use both industry and occupation data to classify people as workers in particular sectors. Our approach is to use a combination of core industries and occupations, and compatible occupations.
If someone works in a core industry and a compatible occupation, they are classified as working in the sector. Occupations are more specific in identifying people as part of trade workforce so anyone with a core occupation is classified as working in the sector.
Use the drop-down menu on the bottom-right to choose a sector. The tables below will show the lists of core and compatible industries and occupations used to define the sector workforces from the census data.