| Value | Category |
|---|---|
| 1 | First enterprise operating |
| 2 | Second enterprise operating |
| 3 | Third enterprise operating |
| 4 | Forth enterprise operating |
| 5 | First enterprise not operating |
| 6 | Second enterprise not operating |
| 7 | First enterprise not operating |
| 8 | Second enterprise not operating |
| Sysmiss |