| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 975 |
84%
|
| 1 | Only once | 42 |
3.6%
|
| 2 | A few times | 90 |
7.8%
|
| 3 | Often | 44 |
3.8%
|
| 9 | Don't know | 10 |
0.9%
|
| 998 | Refused | 0 |
0%
|