| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 28 |
0.1%
|
| 0 | Never | 44019 |
85.3%
|
| 1 | Only once | 2668 |
5.2%
|
| 2 | A few times | 2968 |
5.8%
|
| 3 | Often | 1497 |
2.9%
|
| 9 | Don't know | 407 |
0.8%
|
| 998 | Refused | 0 |
0%
|