| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 802 |
66.8%
|
| 1 | Once or twice | 160 |
13.3%
|
| 2 | A few times | 113 |
9.4%
|
| 3 | Often | 124 |
10.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't know | 1 |
0.1%
|