| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 676 |
52.9%
|
| 1 | Only once | 184 |
14.4%
|
| 2 | A few times | 271 |
21.2%
|
| 3 | Often | 146 |
11.4%
|
| 9 | Don't know | 0 |
0%
|
| 998 | Refused | 0 |
0%
|