Year	Years
1950	68.52
1951	68.71
1952	69.09
1953	69.43
1954	69.72
1955	69.97
1956	70.19
1957	70.37
1958	70.52
1959	70.64
1960	70.74
1961	70.83
1962	70.93
1963	71.03
1964	71.14
1965	71.27
1966	71.39
1967	71.51
1968	71.62
1969	71.73
1970	71.82
1971	71.92
1972	72.02
1973	72.13
1974	72.26
1975	72.41
1976	72.58
1977	72.77
1978	72.98
1979	73.21
1980	73.44
1981	73.67
1982	73.89
1983	74.1
1984	74.3
1985	74.49
1986	74.68
1987	74.87
1988	75.07
1989	75.29
1990	75.51
1991	75.73
1992	75.94
1993	76.14
1994	76.34
1995	76.53
1996	76.72
1997	76.92
1998	77.14
1999	77.37
2000	77.61
2001	77.87
2002	78.14
2003	78.41
2004	78.67
2005	78.93
2006	79.16
2007	79.38
2008	79.57
2009	79.75
2010	79.9
2011	80.05
2012	80.19
2013	80.32
2014	80.47
2015	80.61
2016	80.76
2017	80.91
2018	81.06
2019	81.21
2020	81.36
2021	81.51
2022	81.66
2023	81.82
2024	81.98
2025	82.13
2026	82.29
2027	82.45
2028	82.6
2029	82.75
2030	82.9
2031	83.05
2032	83.2
2033	83.35
2034	83.5
2035	83.65
2036	83.8
2037	83.94
2038	84.08
2039	84.22
2040	84.35
2041	84.48
2042	84.61
2043	84.74
2044	84.86
2045	84.98
2046	85.1
2047	85.22
2048	85.34
2049	85.46
2050	85.58
2051	85.69
2052	85.8
2053	85.91
2054	86.02
2055	86.13
2056	86.24
2057	86.35
2058	86.46
2059	86.57
2060	86.68
2061	86.79
2062	86.9
2063	87.01
2064	87.12
2065	87.23
2066	87.34
2067	87.45
2068	87.56
2069	87.67
2070	87.78
2071	87.89
2072	88
2073	88.11
2074	88.22
2075	88.33
2076	88.44
2077	88.55
2078	88.66
2079	88.77
2080	88.88
2081	88.99
2082	89.1
2083	89.21
2084	89.32
2085	89.43
2086	89.54
2087	89.65
2088	89.76
2089	89.87
2090	89.98
2091	90.09
2092	90.2
2093	90.31
2094	90.42
2095	90.53
2096	90.64
2097	90.75
2098	90.86
2099	90.97
2100	91.08