| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 2034 |
84.8%
|
| 1 | Only once | 150 |
6.3%
|
| 2 | A few times | 174 |
7.3%
|
| 3 | Often | 42 |
1.8%
|
| 9 | Don't know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|