Year	Percent
1950	16.01338
1955	16.38544
1960	16.35185
1965	15.49193
1970	15.36301
1975	14.82585
1980	14.53025
1985	15.02765
1990	16.45356
1995	18.92102
2000	21.81873
2005	24.79224
2010	25.74543
2015	26.07787
2020	26.63027
2025	28.25553
2030	30.14773
2035	30.1985
2040	28.85522
2045	26.43597
2050	25.44698
2055	26.11292
2060	27.05066
2065	27.02712
2070	26.08404
2075	25.02715
2080	24.66632
2085	24.87659
2090	25.181
2095	25.16586
2100	24.77991