| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1892 |
78.8%
|
| 1 | Only once | 228 |
9.5%
|
| 2 | A few times | 236 |
9.8%
|
| 3 | Often | 36 |
1.5%
|
| 9 | Don't know | 8 |
0.3%
|
| 98 | Refused | 0 |
0%
|