| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 3 |
0%
|
| 0 | Never | 6869 |
27%
|
| 1 | Once or twice | 4064 |
16%
|
| 2 | A few times | 4910 |
19.3%
|
| 3 | Often | 5027 |
19.8%
|
| 7 | No experience | 4346 |
17.1%
|
| 9 | Don't know | 178 |
0.7%
|
| 998 | Refused | 0 |
0%
|