Year	Percent
1950	23.91805
1955	21.9791
1960	23.87839
1965	24.87832
1970	25.07991
1975	24.93647
1980	24.76224
1985	25.08941
1990	26.07269
1995	27.35368
2000	28.44333
2005	27.56448
2010	26.76193
2015	26.06235
2020	26.73817
2025	28.96086
2030	31.78841
2035	33.29214
2040	32.92546
2045	31.997
2050	30.7121
2055	30.04724
2060	29.69427
2065	29.27286
2070	28.57594
2075	27.64058
2080	26.63887
2085	25.70707
2090	24.92315
2095	24.2429
2100	23.60372