| Value | Category | Cases | |
|---|---|---|---|
| -999 | -999 | 9 |
0.2%
|
| -888 | -888 | 86 |
1.9%
|
| 1 | Most of the time | 2649 |
57.7%
|
| 2 | Some of the time | 1313 |
28.6%
|
| 3 | Not very often | 349 |
7.6%
|
| 4 | Never | 185 |
4%
|
| Sysmiss | 359 |