| Value | Category |
|---|---|
| -9 | Don't know (spontaneous) |
| -7 | Establishment was not in business |
| 0 | |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | |
| 20 | |
| 21 | |
| 22 | |
| 23 | |
| 25 | |
| 26 | |
| 27 | |
| 28 | |
| 29 | |
| 30 | |
| 31 | |
| 32 | |
| 33 | |
| 34 | |
| 35 | |
| 36 | |
| 37 | |
| 38 | |
| 39 | |
| 40 | |
| 41 | |
| 42 | |
| 43 | |
| 45 | |
| 46 | |
| 48 | |
| 49 | |
| 50 | |
| 52 | |
| 65 | |
| 70 | |
| 72 | |
| 75 | |
| 80 | |
| 84 | |
| 89 | |
| 94 | |
| 100 | |
| 103 | |
| 105 | |
| 120 | |
| 131 | |
| 138 | |
| 145 | |
| 154 | |
| 159 | |
| 171 | |
| 173 | |
| 183 | |
| 184 | |
| 196 | |
| 200 | |
| 232 | |
| 242 | |
| 250 | |
| 253 | |
| 268 | |
| 270 | |
| 300 | |
| 335 | |
| 381 | |
| 400 | |
| 403 | |
| 450 | |
| 479 | |
| 484 | |
| 570 | |
| 750 | |
| 1000 | |
| 1400 | |
| Sysmiss |