Year	Percent
1950	10.78076
1955	11.35993
1960	11.94765
1965	12.92812
1970	13.68122
1975	14.36713
1980	14.81836
1985	15.80714
1990	20.96515
1995	23.05402
2000	23.88155
2005	24.05924
2010	24.93257
2015	26.81396
2020	29.30182
2025	32.39056
2030	35.61469
2035	39.19736
2040	42.49178
2045	43.99099
2050	44.17408
2055	43.81129
2060	43.08045
2065	42.77008
2070	42.92146
2075	42.65564
2080	42.3884
2085	42.2594
2090	42.31771
2095	42.55792
2100	42.92359