Year	Years
1950	51.10726
1955	48.20359
1960	48.02621
1965	48.09698
1970	47.17337
1975	46.65084
1980	52.46958
1985	56.12318
1990	60.68784
1995	61.01558
2000	62.61833
2005	63.41248
2010	64.53648
2015	65.76362
2020	65.48186
2025	65.60005
2030	65.52764
2035	66.27108
2040	67.49494
2045	68.13882
2050	68.27487
2055	68.92504
2060	70.17416
2065	72.40386
2070	74.76751
2075	77.22269
2080	79.49432
2085	81.41257
2090	82.86641
2095	83.99928
2100	84.99094