| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 14 |
3.8%
|
| 2 | Every few weeks | 42 |
11.4%
|
| 3 | Every few months | 131 |
35.6%
|
| 4 | Not at all | 131 |
35.6%
|
| Sysmiss | 50 |
13.6%
|