| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1826 |
76.1%
|
| 1 | Only once | 249 |
10.4%
|
| 2 | A few times | 241 |
10%
|
| 3 | Often | 72 |
3%
|
| 9 | Don't know | 12 |
0.5%
|
| 98 | Refused | 0 |
0%
|