| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 1104 |
92%
|
| 1 | Only once | 35 |
2.9%
|
| 2 | A few times | 28 |
2.3%
|
| 3 | Often | 15 |
1.3%
|
| 8 | Refused | 1 |
0.1%
|
| 9 | Don’t know | 17 |
1.4%
|