| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 144 |
49.7%
|
| 2 | Every few months | 89 |
30.7%
|
| 3 | Every few weeks | 38 |
13.1%
|
| 4 | Every few days | 19 |
6.6%
|
| -99 | 9 | ||
| Sysmiss | 53 |