| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 7 |
3.4%
|
| 2 | Every few weeks | 26 |
12.7%
|
| 3 | Every few months | 55 |
27%
|
| 4 | Not at all | 116 |
56.9%
|
| Sysmiss | 12 |