| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 7612 |
69.9%
|
| 2 | Once | 638 |
5.9%
|
| 3 | A few times | 1045 |
9.6%
|
| 4 | Many times | 1594 |
14.6%
|
| Sysmiss | 27 |