| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 33 |
10.5%
|
| 2 | Every few weeks | 95 |
30.3%
|
| 3 | Every few months | 130 |
41.4%
|
| 4 | Not at all | 56 |
17.8%
|
| Sysmiss | 54 |