| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1867 |
77.8%
|
| 1 | Only once | 131 |
5.5%
|
| 2 | A few times | 257 |
10.7%
|
| 3 | Often | 136 |
5.7%
|
| 9 | Don't know | 9 |
0.4%
|
| 98 | Refused | 0 |
0%
|