| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 824 |
68.7%
|
| 1 | Only once | 112 |
9.3%
|
| 2 | A few times | 129 |
10.8%
|
| 3 | Often | 100 |
8.3%
|
| 9 | Do not know | 35 |
2.9%
|
| 98 | Refused | 0 |
0%
|