| Beta range | Number of Pregnancies in this range |
|---|---|
| 539 - 852 | (5) |
| 852 - 1347 | (10) |
| 1347 - 2130 | (24) |
| 2130 - 3367 | (31) |
| 3367 - 5324 | (50) |
| 5324 - 8418 | (68) |
| 8418 - 13309 | (133) |
| 13309 - 21041 | (149) |
| 21041 - 33267 | (108) |
| 33267 - 52596 | (50) |
| 52596 - 83156 | (8) |
| 83156 - 131471 | (2) |