| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 992 |
82.7%
|
| 1 | Only once | 82 |
6.8%
|
| 2 | A few times | 83 |
6.9%
|
| 3 | Often | 26 |
2.2%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don’t know | 16 |
1.3%
|