| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 11 |
2.5%
|
| 2 | Every few weeks | 15 |
3.4%
|
| 3 | Every few months | 129 |
29%
|
| 4 | Not at all | 290 |
65.2%
|
| Sysmiss | 122 |