| Value | Category |
|---|---|
| 1 | government institution, military |
| 2 | state-run enterprises |
| 3 | communist party institution |
| 4 | co-operative enterprise |
| 5 | private enterprise |
| 6 | small, family enterprise |
| 7 | foreign-owned enterprise |
| 8 | joint venture with government, co-op, private |
| 9 | other joint-venture |
| 10 | other |
| 11 | self-employed |