| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1110 |
92.5%
|
| 1 | Only once | 22 |
1.8%
|
| 2 | A few times | 48 |
4%
|
| 3 | Often | 20 |
1.7%
|
| 9 | Don't know | 0 |
0%
|
| 98 | Refused | 0 |
0%
|