| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 7 |
1.2%
|
| 2 | Every few weeks | 44 |
7.3%
|
| 3 | Every few months | 206 |
34%
|
| 4 | Not at all | 301 |
49.7%
|
| Sysmiss | 48 |
7.9%
|