| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 39 |
8.6%
|
| 2 | Every few weeks | 77 |
17%
|
| 3 | Every few months | 197 |
43.5%
|
| 4 | Not at all | 140 |
30.9%
|
| Sysmiss | 114 |