| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1037 |
86.4%
|
| 1 | Only once | 38 |
3.2%
|
| 2 | A few times | 55 |
4.6%
|
| 3 | Often | 26 |
2.2%
|
| 9 | Don't know | 44 |
3.7%
|
| 98 | Refused | 0 |
0%
|