| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 0 |
0%
|
| 2 | Every few weeks | 2 |
1%
|
| 3 | Every few months | 30 |
15.1%
|
| 4 | Not at all | 167 |
83.9%
|
| Sysmiss | 3 |