Year	Percent
1950	3.79615
1955	3.63273
1960	3.52222
1965	3.48755
1970	4.8522
1975	4.67569
1980	4.61463
1985	4.87989
1990	5.73009
1995	5.60692
2000	5.39418
2005	5.36418
2010	5.78061
2015	6.30788
2020	6.72883
2025	7.52941
2030	8.17882
2035	8.92348
2040	9.90808
2045	11.31886
2050	12.69477
2055	13.53276
2060	14.88579
2065	16.03065
2070	17.67569
2075	19.1353
2080	20.60958
2085	22.04365
2090	23.42928
2095	24.77293
2100	26.08831