| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 0 |
0%
|
| 0 | Never | 1321 |
55%
|
| 1 | Once or twice | 181 |
7.5%
|
| 2 | A few times | 113 |
4.7%
|
| 3 | Often | 136 |
5.7%
|
| 7 | No experience | 618 |
25.8%
|
| 9 | Don't know | 31 |
1.3%
|
| 998 | Refused | 0 |
0%
|