| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 1 |
0.1%
|
| 0 | Never | 1113 |
92.8%
|
| 1 | Only once | 32 |
2.7%
|
| 2 | A few times | 29 |
2.4%
|
| 3 | Often | 23 |
1.9%
|
| 9 | Don't know | 2 |
0.2%
|
| 98 | Refused | 0 |
0%
|