| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 10 |
0%
|
| 0 | Never | 16736 |
68.9%
|
| 1 | Only once | 1980 |
8.1%
|
| 2 | A few times | 2897 |
11.9%
|
| 3 | Often | 1771 |
7.3%
|
| 7 | Not applicable | 682 |
2.8%
|
| 9 | Don't know | 225 |
0.9%
|
| 98 | Refused | 0 |
0%
|