| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 366 |
15.4%
|
| 1 | Once or twice | 44 |
1.9%
|
| 2 | A few times | 31 |
1.3%
|
| 3 | Often | 20 |
0.8%
|
| 7 | Not applicable | 1914 |
80.5%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 3 |
0.1%
|