| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 0 |
0%
|
| 2 | Every few weeks | 10 |
4.6%
|
| 3 | Every few months | 51 |
23.5%
|
| 4 | Not at all | 156 |
71.9%
|
| Sysmiss | 40 |