| Value | Category | Cases | |
|---|---|---|---|
| 1 | Just before menstruation period begins | 45 |
2.6%
|
| 2 | During menstruation period | 42 |
2.4%
|
| 3 | Right after menstruation period has ended | 97 |
5.5%
|
| 4 | Halfway between two periods | 300 |
17%
|
| 6 | Other | 1 |
0.1%
|
| 8 | DK | 51 |
2.9%
|
| Sysmiss | 1228 |
69.6%
|