| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 809 |
67.4%
|
| 1 | Only once | 102 |
8.5%
|
| 2 | A few times | 152 |
12.7%
|
| 3 | Often | 106 |
8.8%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don’t know | 31 |
2.6%
|