| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 871 |
72.6%
|
| 1 | Only once | 59 |
4.9%
|
| 2 | A few times | 127 |
10.6%
|
| 3 | Often | 114 |
9.5%
|
| 9 | Don't know | 29 |
2.4%
|
| 98 | Refused | 0 |
0%
|