| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 13 |
4%
|
| 2 | Every few weeks | 25 |
7.7%
|
| 3 | Every few months | 75 |
23.2%
|
| 4 | Not at all | 210 |
65%
|
| Sysmiss | 31 |