| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1052 |
43.8%
|
| 1 | Only once | 261 |
10.9%
|
| 2 | A few times | 636 |
26.5%
|
| 3 | Often | 450 |
18.8%
|
| 9 | Don't know | 1 |
0%
|
| 998 | Refused | 0 |
0%
|