| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 2 |
2%
|
| 2 | Every few weeks | 9 |
8.8%
|
| 3 | Every few months | 49 |
48%
|
| 4 | Not at all | 42 |
41.2%
|
| Sysmiss | 27 |