| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 4 |
0%
|
| 0 | Never | 7975 |
31.4%
|
| 1 | Once or twice | 2914 |
11.5%
|
| 2 | A few times | 3207 |
12.6%
|
| 3 | Often | 2372 |
9.3%
|
| 7 | No experience | 8116 |
32%
|
| 9 | Don't know | 809 |
3.2%
|
| 998 | Refused | 0 |
0%
|