| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 887 |
74.2%
|
| 1 | Only sometimes | 191 |
16%
|
| 2 | Often | 51 |
4.3%
|
| 3 | Always | 19 |
1.6%
|
| 9 | Don't know | 48 |
4%
|
| 998 | Refused | 0 |
0%
|