| Value | Category | Cases | |
|---|---|---|---|
| 1 | During her period | 1131 |
8.8%
|
| 2 | After period ended | 3674 |
28.7%
|
| 3 | Middle of the cycle | 1850 |
14.5%
|
| 4 | Before period begins | 3266 |
25.5%
|
| 5 | At any time | 1393 |
10.9%
|
| 6 | Other | 28 |
0.2%
|
| 8 | Don't know | 1460 |
11.4%
|
| 9 | 17 |