| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1079 |
89.9%
|
| 1 | Only once | 44 |
3.7%
|
| 2 | A few times | 43 |
3.6%
|
| 3 | Often | 20 |
1.7%
|
| 9 | Don't know | 14 |
1.2%
|
| 98 | Refused | 0 |
0%
|