| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 565 |
47.1%
|
| 1 | Once or twice | 46 |
3.8%
|
| 2 | A few times | 30 |
2.5%
|
| 3 | Often | 73 |
6.1%
|
| 7 | Not applicable | 479 |
39.9%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 7 |
0.6%
|