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. 2009 Jun 8;4(6):e5836. doi: 10.1371/journal.pone.0005836

Table 1. The number of individuals used in this study from each haplogroup during each time period.

Time Period Haplogroup H Haplogroup U
1870–1920 302 286
1920–1940 88 121
1940–1960 101 151
1960–1980 154 207
After 1980 92 125
Total 737 890