| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 6 |
2%
|
| 2 | Every few weeks | 20 |
6.8%
|
| 3 | Every few months | 150 |
51%
|
| 4 | Not at all | 118 |
40.1%
|
| -99 | 10 | ||
| Sysmiss | 56 |