| Beta range | Number of Pregnancies in this range |
|---|---|
| 245 - 396 | (1) |
| 396 - 641 | (5) |
| 641 - 1037 | (12) |
| 1037 - 1678 | (27) |
| 1678 - 2716 | (50) |
| 2716 - 4394 | (75) |
| 4394 - 7109 | (111) |
| 7109 - 11502 | (196) |
| 11502 - 18610 | (245) |
| 18610 - 30109 | (149) |
| 30109 - 48714 | (74) |
| 48714 - 78814 | (12) |