| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 5 |
0%
|
| 0 | Never | 7827 |
30.8%
|
| 1 | Once or twice | 2214 |
8.7%
|
| 2 | A few times | 2881 |
11.3%
|
| 3 | Often | 3601 |
14.2%
|
| 7 | No experience | 8116 |
32%
|
| 9 | Don't know | 753 |
3%
|
| 998 | Refused | 0 |
0%
|