| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 10 |
6.8%
|
| 2 | Every few weeks | 20 |
13.5%
|
| 3 | Every few months | 34 |
23%
|
| 4 | Not at all | 81 |
54.7%
|
| -99 | 3 |
2%
|
|
| Sysmiss | 17 |