| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 4 |
0.2%
|
| 0 | Never | 2058 |
85.5%
|
| 1 | Only once | 124 |
5.2%
|
| 2 | A few times | 145 |
6%
|
| 3 | Often | 56 |
2.3%
|
| 9 | Don't know | 20 |
0.8%
|
| 998 | Refused | 0 |
0%
|