Year	Percent
1950	10.08999
1955	10.64587
1960	11.06129
1965	11.34747
1970	11.51686
1975	11.63876
1980	11.77594
1985	12.40432
1990	14.54396
1995	15.17332
2000	15.94139
2005	17.3219
2010	20.28486
2015	22.5887
2020	25.18865
2025	27.90802
2030	30.23128
2035	31.46163
2040	31.70438
2045	31.93585
2050	32.43333
2055	32.97157
2060	33.35426
2065	33.96495
2070	34.35067
2075	34.61732
2080	34.97163
2085	35.38662
2090	35.80825
2095	36.20053
2100	36.53295