| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | Never | 1027 |
85.7%
|
| 1 | Only once | 59 |
4.9%
|
| 2 | A few times | 86 |
7.2%
|
| 3 | Often | 21 |
1.8%
|
| 9 | Don't know | 3 |
0.3%
|
| 998 | Refused | 0 |
0%
|