| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 4 |
0%
|
| 0 | Never | 13098 |
51.6%
|
| 1 | Once or twice | 2861 |
11.3%
|
| 2 | A few times | 2460 |
9.7%
|
| 3 | Often | 2159 |
8.5%
|
| 7 | No experience | 4346 |
17.1%
|
| 9 | Don't know | 469 |
1.8%
|
| 998 | Refused | 0 |
0%
|