| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 95 |
32.5%
|
| 2 | Every few months | 169 |
57.9%
|
| 3 | Every few weeks | 17 |
5.8%
|
| 4 | Every few days | 11 |
3.8%
|
| -99 | 10 | ||
| Sysmiss | 50 |