| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
1%
|
| 2 | Every few weeks | 17 |
5.4%
|
| 3 | Every few months | 107 |
34.2%
|
| 4 | Not at all | 122 |
39%
|
| Sysmiss | 64 |
20.4%
|