| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 15 |
4.8%
|
| 2 | Every few weeks | 73 |
23.3%
|
| 3 | Every few months | 113 |
36.1%
|
| 4 | Not at all | 56 |
17.9%
|
| Sysmiss | 56 |
17.9%
|