| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1576 |
65.7%
|
| 1 | Only once | 30 |
1.3%
|
| 2 | A few times | 73 |
3%
|
| 3 | Often | 57 |
2.4%
|
| 8 | Refused | 33 |
1.4%
|
| 9 | Don’t know | 631 |
26.3%
|