| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
2%
|
| 2 | Every few weeks | 33 |
5.4%
|
| 3 | Every few months | 138 |
22.8%
|
| 4 | Not at all | 375 |
61.9%
|
| Sysmiss | 48 |
7.9%
|