| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.3%
|
| 0 | Never | 664 |
60.1%
|
| 1 | Only once | 63 |
5.7%
|
| 2 | A few times | 154 |
13.9%
|
| 3 | Often | 216 |
19.6%
|
| 9 | Don't know | 4 |
0.4%
|
| 98 | Refused | 0 |
0%
|