Year	Percent
1950	14.02898
1955	14.98562
1960	16.06577
1965	17.30831
1970	18.44415
1975	19.53037
1980	20.09964
1985	20.64524
1990	25.32941
1995	24.60254
2000	24.61899
2005	25.52901
2010	26.67803
2015	26.80911
2020	27.32223
2025	28.19056
2030	29.42618
2035	30.21962
2040	30.365
2045	30.55668
2050	31.34446
2055	32.50421
2060	32.23143
2065	32.20225
2070	32.65704
2075	33.15904
2080	33.78074
2085	34.35797
2090	34.78709
2095	35.19727
2100	35.72885