| Value | Category |
|---|---|
| 1 | government, public administration2. |
| 2 | public sector enterprise |
| 3 | mixed public and private sector |
| 4 | cooperative |
| 5 | private company |
| 6 | private foreign company |
| 7 | joint private company |
| 8 | non-profit endowment institution |
| 9 | non-governmental organization |
| 10 | international or regional organization |
| 99 | not stated |