| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 2 |
0.2%
|
| 0 | Never | 863 |
72%
|
| 1 | Only once | 144 |
12%
|
| 2 | A few times | 130 |
10.9%
|
| 3 | Often | 44 |
3.7%
|
| 9 | Don’t know | 15 |
1.3%
|
| 98 | Refused | 0 |
0%
|