| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 593 |
24.7%
|
| 1 | Once or twice | 141 |
5.9%
|
| 2 | A few times | 121 |
5%
|
| 3 | Often | 181 |
7.5%
|
| 7 | Not applicable | 1355 |
56.5%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 9 |
0.4%
|