| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 3 |
1.4%
|
| 2 | Every few weeks | 10 |
4.6%
|
| 3 | Every few months | 76 |
34.7%
|
| 4 | Not at all | 130 |
59.4%
|
| Sysmiss | 113 |