| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every few days | 6 |
1%
|
| 2 | Every few weeks | 27 |
4.5%
|
| 3 | Every few months | 88 |
14.5%
|
| 4 | Not at all | 424 |
70%
|
| Sysmiss | 61 |
10.1%
|