| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not at all | 65 |
22.3%
|
| 2 | Every few months | 129 |
44.2%
|
| 3 | Every few weeks | 72 |
24.7%
|
| 4 | Every few days | 26 |
8.9%
|
| -99 | 7 | ||
| Sysmiss | 53 |