Year	Percent
1950	12.28933
1955	12.34212
1960	12.41879
1965	12.47961
1970	12.53119
1975	12.57977
1980	12.62881
1985	12.676
1990	12.65212
1995	12.44022
2000	12.27381
2005	12.11552
2010	11.98478
2015	11.95757
2020	12.0433
2025	12.26453
2030	12.60085
2035	13.07928
2040	13.69836
2045	14.60422
2050	15.81934
2055	17.21273
2060	18.59008
2065	19.81967
2070	20.89824
2075	21.85464
2080	22.74474
2085	23.51614
2090	24.11839
2095	24.55874
2100	24.86007