| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 7 |
3.6%
|
| 2 | Every few weeks | 31 |
16%
|
| 3 | Every few months | 78 |
40.2%
|
| 4 | Not at all | 25 |
12.9%
|
| Sysmiss | 53 |
27.3%
|