| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 270 |
25.8%
|
| 1 | Once or twice | 192 |
18.3%
|
| 2 | A few times | 175 |
16.7%
|
| 3 | Often | 118 |
11.3%
|
| 7 | No experience | 254 |
24.2%
|
| 9 | Don't know | 39 |
3.7%
|