| Value | Category | Cases | |
|---|---|---|---|
| 1 | during her period | 265 |
2.3%
|
| 2 | after period ended | 3631 |
30.9%
|
| 3 | middle of the cycle | 2823 |
24%
|
| 4 | before period begins | 1194 |
10.2%
|
| 5 | at any time | 1927 |
16.4%
|
| 6 | other | 133 |
1.1%
|
| 8 | don't know | 1786 |
15.2%
|