| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 13 |
5.5%
|
| 2 | Every few weeks | 54 |
22.8%
|
| 3 | Every few months | 115 |
48.5%
|
| 4 | Not at all | 55 |
23.2%
|
| Sysmiss | 52 |