| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 13 |
3.6%
|
| 2 | Every few weeks | 32 |
8.9%
|
| 3 | Every few months | 79 |
22%
|
| 4 | Not at all | 156 |
43.5%
|
| Sysmiss | 79 |
22%
|