| Value | Category | Cases | |
|---|---|---|---|
| 1 | Frequent | 451 |
16.9%
|
| 2 | Occasion | 1534 |
57.4%
|
| 3 | Never | 661 |
24.7%
|
| 4 | Dont kno | 27 |
1%
|
| Sysmiss | 1 |