| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 8 |
6.3%
|
| 2 | Every few weeks | 35 |
27.3%
|
| 3 | Every few months | 63 |
49.2%
|
| 4 | Not at all | 22 |
17.2%
|
| Sysmiss | 38 |