| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 26 |
4.3%
|
| 2 | Every few weeks | 88 |
14.5%
|
| 3 | Every few months | 187 |
30.9%
|
| 4 | Not at all | 261 |
43.1%
|
| Sysmiss | 44 |
7.3%
|