| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 804 |
33.5%
|
| 1 | Only sometimes | 737 |
30.7%
|
| 2 | Often | 332 |
13.8%
|
| 3 | Always | 161 |
6.7%
|
| 9 | Don't know | 366 |
15.3%
|
| 998 | Refused | 0 |
0%
|