| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 2 |
1%
|
| 2 | Every few weeks | 5 |
2.4%
|
| 3 | Every few months | 53 |
25.2%
|
| 4 | Not at all | 107 |
51%
|
| Sysmiss | 43 |
20.5%
|