Year	Percent
1950	14.20994
1955	14.00683
1960	13.76818
1965	13.47787
1970	12.88974
1975	12.1245
1980	11.27028
1985	10.57454
1990	10.23981
1995	11.43826
2000	11.37342
2005	11.41255
2010	11.27614
2015	11.46376
2020	12.6741
2025	14.5113
2030	16.97358
2035	19.63955
2040	21.21848
2045	22.33227
2050	23.23763
2055	24.15948
2060	25.38012
2065	26.47954
2070	27.22504
2075	27.57046
2080	27.73988
2085	27.8211
2090	27.81093
2095	27.63017
2100	27.28036