| Value | Category | Cases | |
|---|---|---|---|
| -95 | Refused | 0 |
0%
|
| 0 | Never | 1301 |
64.8%
|
| 1 | Once | 97 |
4.8%
|
| 2 | From time to time | 435 |
21.7%
|
| 3 | Often | 164 |
8.2%
|
| 97 | NA | 0 |
0%
|
| a | 11 |
0.5%
|
|
| Sysmiss | 727 |