| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 962 |
80.2%
|
| 1 | Only once | 85 |
7.1%
|
| 2 | A few times | 77 |
6.4%
|
| 3 | Often | 46 |
3.8%
|
| 9 | Do not know | 30 |
2.5%
|
| 98 | Refused | 0 |
0%
|