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Optimal histogram binning for the three study regions using the Hogg (14) method
| Bin number | Bin width (yr) | Bin 1 start date (yr BP) | α | Likelihood rank |
| EB | ||||
| 54 | 619 | 13,310 | 1.7 | 1 |
| 57 | 587 | 13,237 | 1.9 | 2 |
| 58 | 577 | 13,343 | 1.9 | 3 |
| 78 | 428 | 13,249 | 1.7 | 4 |
| 63 | 531 | 13,146 | 1.9 | 5 |
| CUSA | ||||
| 18 | 2,297 | 7,993 | 1.4 | 1 |
| 69 | 574 | 8,574 | 1.2 | 2 |
| 71 | 558 | 8,692 | 1.1 | 3 |
| 38 | 1,055 | 8,373 | 1.4 | 4 |
| 20 | 2,055 | 8,484 | 1.4 | 5 |
| SA | ||||
| 16 | 2,723 | 7,323 | 1.1 | 1 |
| 17 | 2,553 | 7,128 | 1.1 | 2 |
| 23 | 1,857 | 7,096 | 1.1 | 3 |
| 15 | 2,917 | 5,955 | 1.1 | 4 |
| 10 | 4,538 | 7,115 | 1.1 | 5 |
