| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 67 |
22.9%
|
| 2 | Every few months | 115 |
39.2%
|
| 3 | Every few weeks | 85 |
29%
|
| 4 | Every few days | 26 |
8.9%
|
| -99 | 8 | ||
| Sysmiss | 51 |