Year	Years
1950	78.04279
1955	77.43988
1960	77.89006
1965	78.12477
1970	77.69175
1975	78.10276
1980	78.53511
1985	79.23063
1990	80.33023
1995	81.88878
2000	84.23788
2005	85.90184
2010	88.66856
2015	89.9424
2020	90.70556
2025	91.24663
2030	91.78627
2035	92.27567
2040	93.02059
2045	93.91788
2050	94.66812
2055	95.29988
2060	95.99659
2065	96.71306
2070	97.31087
2075	97.75427
2080	98.10123
2085	98.39277
2090	98.58837
2095	98.7101
2100	98.73432