| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 334 |
31.9%
|
| 1 | Once or twice | 165 |
15.7%
|
| 2 | A few times | 136 |
13%
|
| 3 | Often | 142 |
13.5%
|
| 7 | No experience | 254 |
24.2%
|
| 9 | Don't know | 17 |
1.6%
|