Year	Percent
1950	5.88398
1955	5.8523
1960	5.96442
1965	6.16681
1970	6.29968
1975	6.36268
1980	6.51941
1985	6.59105
1990	7.43111
1995	7.69869
2000	7.67555
2005	7.68554
2010	8.23531
2015	9.75969
2020	11.29083
2025	12.8048
2030	14.41718
2035	16.01417
2040	17.52194
2045	18.87015
2050	20.15555
2055	21.53104
2060	23.11808
2065	25.01281
2070	26.34152
2075	27.14804
2080	27.84814
2085	28.54729
2090	29.28216
2095	29.9813
2100	30.58687