| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 704 |
58.3%
|
| 1 | Only once | 159 |
13.2%
|
| 2 | A few times | 176 |
14.6%
|
| 3 | Often | 168 |
13.9%
|
| 9 | Don't know | 1 |
0.1%
|
| 998 | Refused | 0 |
0%
|