Year	Percent
1950	3.3263
1955	3.07266
1960	3.42915
1965	4.3882
1970	5.38052
1975	6.30606
1980	6.68951
1985	7.25173
1990	8.42794
1995	9.40278
2000	10.75144
2005	12.58922
2010	14.11284
2015	17.86625
2020	22.25717
2025	26.79939
2030	30.59117
2035	34.14563
2040	36.92891
2045	38.89644
2050	40.11854
2055	41.57729
2060	42.72215
2065	43.44095
2070	43.88855
2075	44.2743
2080	44.64738
2085	45.02677
2090	45.47503
2095	45.88219
2100	46.26005