Year	Percent
1950	7.91483
1955	8.94602
1960	9.58858
1965	10.37681
1970	11.58859
1975	11.56014
1980	11.90827
1985	11.63548
1990	13.39704
1995	14.23221
2000	14.94781
2005	16.86987
2010	20.921
2015	23.15234
2020	25.78549
2025	27.59197
2030	28.3382
2035	29.64989
2040	31.63092
2045	33.7858
2050	35.99756
2055	37.83789
2060	38.64518
2065	38.39763
2070	38.15227
2075	38.05123
2080	37.99707
2085	38.07011
2090	38.15916
2095	38.1725
2100	38.19472