| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 22 |
4.6%
|
| 2 | Every few weeks | 79 |
16.7%
|
| 3 | Every few months | 237 |
50%
|
| 4 | Not at all | 136 |
28.7%
|
| Sysmiss | 4 |