| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 138 |
48.3%
|
| 2 | Every few months | 101 |
35.3%
|
| 3 | Every few weeks | 32 |
11.2%
|
| 4 | Every few days | 15 |
5.2%
|
| -99 | 13 | ||
| Sysmiss | 53 |