| Value | Category |
|---|---|
| -777 | No profits |
| -9 | Do not know |
| -8 | Refused |
| 0 | |
| 1 | |
| 4 | |
| 5 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 20 | |
| 22 | |
| 23 | |
| 24 | |
| 25 | |
| 26 | |
| 27 | |
| 28 | |
| 29 | |
| 30 | |
| 33 | |
| 34 | |
| 35 | |
| 38 | |
| 40 | |
| 41 | |
| 42 | |
| 45 | |
| 46 | |
| 47 | |
| 50 | |
| 52 | |
| 54 | |
| 57 | |
| 60 | |
| 65 | |
| 67 | |
| 68 | |
| 70 | |
| 74 | |
| 75 | |
| 78 | |
| 79 | |
| 80 | |
| 83 | |
| 85 | |
| 86 | |
| 90 | |
| 92 | |
| 95 | |
| 98 | |
| 100 | |
| 999 | N/A |
| 9997 | Do not know |
| Sysmiss |