| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 12 |
4.2%
|
| 2 | Every few weeks | 23 |
8%
|
| 3 | Every few months | 72 |
24.9%
|
| 4 | Not at all | 182 |
63%
|
| Sysmiss | 79 |