| Value | Category | Cases | |
|---|---|---|---|
| 0 | None | 10628 |
97.6%
|
| 1 | A few times last year | 177 |
1.6%
|
| 2 | About once a month | 69 |
0.6%
|
| 3 | About once a week | 8 |
0.1%
|
| 4 | More than once a week | 5 |
0%
|
| Sysmiss | 29 |