| Value | Category |
|---|---|
| -6 | has not limited usual activity |
| -5 | other |
| -4 | missing data |
| -3 | refused to answer |
| -2 | not applicable |
| -1 | do not know |
| 0 | |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 18 | |
| 20 | |
| 21 | |
| 24 | |
| 26 | |
| 27 | |
| 30 | |
| 31 | |
| 36 | |
| 39 | |
| 45 | |
| 48 | |
| 53 | |
| 59 | |
| 60 | |
| 65 | |
| 70 | |
| 72 | |
| 75 | |
| 78 | |
| 82 | |
| 84 | |
| 85 | |
| 87 | |
| 89 | |
| 90 | |
| 94 | |
| 96 | |
| 97 | |
| 98 | |
| 99 | |
| 108 | |
| 120 | |
| 121 | |
| 184 | |
| 276 | |
| 300 | |
| 366 |