| Value | Category | Cases | |
|---|---|---|---|
| 1 | every month | 0 |
0%
|
| 2 | almost every month | 3 |
1.5%
|
| 3 | some months | 9 |
4.5%
|
| 4 | only 1/2 months | 9 |
4.5%
|
| 5 | never | 179 |
89.5%
|
| 8 | dk | 0 |
0%
|