| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 15 |
3.4%
|
| 2 | Every few weeks | 45 |
10.1%
|
| 3 | Every few months | 228 |
51.2%
|
| 4 | Not at all | 157 |
35.3%
|
| Sysmiss | 122 |