| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1735 |
72.3%
|
| 1 | Only once | 112 |
4.7%
|
| 2 | A few times | 240 |
10%
|
| 3 | Often | 275 |
11.5%
|
| 8 | Refused | 1 |
0%
|
| 9 | Don’t know | 37 |
1.5%
|