| Age groups (years) |
| |||
Fertilization state | X1: 50 - 59 | X2: 60 - 69 | X3: ≥70 | Y: 25 - 35 | Total |
Fertilized | 329a | 298b | 225c | 350d | 1202 |
Not Fertilized | 22a | 52b | 126c | 0d | 200 |
Total | 351 | 350 | 351 | 350 | 1402 |