decade	percent_female
1910	0.040584415584415584
1920	0.8831794460056202
1930	1.6083634901487736
1940	1.8451664661050944
1950	3.0303030303030303
1960	2.7182866556836904
1970	3.5920726672171757
1980	4.977187888842804
1990	10.830921868540718
2000	15.865782932891467
2010	20.196640721015978
2020	27.710843373493976