| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 5 |
0.4%
|
| 0 | Never | 897 |
74.8%
|
| 1 | Only once | 86 |
7.2%
|
| 2 | A few times | 96 |
8%
|
| 3 | Often | 84 |
7%
|
| 9 | Don't know | 31 |
2.6%
|
| 998 | Refused | 0 |
0%
|