| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 7 |
3.5%
|
| 2 | Every few weeks | 27 |
13.5%
|
| 3 | Every few months | 68 |
34%
|
| 4 | Not at all | 98 |
49%
|
| Sysmiss | 27 |