| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.2%
|
| 0 | Never | 1446 |
60.3%
|
| 1 | Only once | 125 |
5.2%
|
| 2 | A few times | 328 |
13.7%
|
| 3 | Often | 490 |
20.4%
|
| 9 | Don't know | 7 |
0.3%
|
| 98 | Refused | 0 |
0%
|