| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1002 |
83.5%
|
| 1 | Only once | 59 |
4.9%
|
| 2 | A few times | 83 |
6.9%
|
| 3 | Often | 42 |
3.5%
|
| 9 | Don't know | 14 |
1.2%
|
| 98 | Refused | 0 |
0%
|