| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
2%
|
| 2 | Every few weeks | 11 |
7.3%
|
| 3 | Every few months | 35 |
23.3%
|
| 4 | Not at all | 101 |
67.3%
|
| Sysmiss | 30 |