| Value | Category | 
|---|---|
| 0 | Agriculture, hunting, forestry & fishing | 
| 1 | Mining & quarrying | 
| 3 | Manufacturing | 
| 4 | Electricity, gas and water | 
| 5 | Construction | 
| 6 | Wholesale and retail trade and restaurants | 
| 7 | Transport, storage and communication | 
| 8 | Financing, insurance, real estate and business services | 
| 9 | Personal services | 
| Sysmiss |