| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing data | 0 |
0%
|
| 0 | Never | 553 |
23.4%
|
| 1 | Once or twice | 294 |
12.4%
|
| 2 | A few times | 216 |
9.1%
|
| 3 | Often | 193 |
8.2%
|
| 7 | No experience | 1076 |
45.5%
|
| 9 | Don't know | 31 |
1.3%
|
| 998 | Refused | 0 |
0%
|