| 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 |