| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 693 |
57.8%
|
| 1 | Only once | 88 |
7.3%
|
| 2 | A few times | 243 |
20.3%
|
| 3 | Often | 167 |
13.9%
|
| 9 | Don't know | 9 |
0.8%
|
| 98 | Refused | 0 |
0%
|