| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 24 |
5%
|
| 2 | Every few weeks | 48 |
9.9%
|
| 3 | Every few months | 63 |
13%
|
| 4 | Not at all | 308 |
63.8%
|
| Sysmiss | 40 |
8.3%
|