| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 973 |
81.1%
|
| 1 | Once or twice | 104 |
8.7%
|
| 2 | A few times | 74 |
6.2%
|
| 3 | Often | 48 |
4%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 1 |
0.1%
|