| Value | Category | Cases | |
|---|---|---|---|
| -95 | Refused | 0 |
0%
|
| 0 | Never | 1158 |
57.7%
|
| 1 | Once | 149 |
7.4%
|
| 2 | From time to time | 453 |
22.6%
|
| 3 | Often | 238 |
11.9%
|
| 97 | NA | 10 |
0.5%
|
| Sysmiss | 727 |