| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
1.5%
|
| 2 | Every few weeks | 8 |
4.1%
|
| 3 | Every few months | 45 |
23%
|
| 4 | Not at all | 140 |
71.4%
|
| Sysmiss | 31 |