Year	Percent
1950	11.38598
1955	11.95789
1960	12.20521
1965	12.28255
1970	12.16492
1975	12.16219
1980	12.33067
1985	12.65283
1990	12.87023
1995	12.55121
2000	12.20085
2005	11.83099
2010	11.53219
2015	11.28351
2020	11.06998
2025	10.89639
2030	10.71429
2035	10.7754
2040	11.14217
2045	11.76526
2050	12.62342
2055	13.55806
2060	14.51094
2065	15.5129
2070	16.571
2075	17.66599
2080	18.76064
2085	19.79619
2090	20.73836
2095	21.57142
2100	22.28823