| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1109 |
92.4%
|
| 1 | Once or twice | 56 |
4.7%
|
| 2 | A few times | 21 |
1.8%
|
| 3 | Often | 14 |
1.2%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 0 |
0%
|