| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 5 |
0%
|
| 0 | Never | 6987 |
27.5%
|
| 1 | Once or twice | 1979 |
7.8%
|
| 2 | A few times | 2886 |
11.4%
|
| 3 | Often | 4689 |
18.5%
|
| 7 | No experience | 8116 |
32%
|
| 9 | Don't know | 735 |
2.9%
|
| 998 | Refused | 0 |
0%
|