Year Years
1950 69.07
1951 69.143
1952 69.299
1953 69.473
1954 69.666
1955 69.878
1956 70.106
1957 70.349
1958 70.6
1959 70.851
1960 71.093
1961 71.314
1962 71.504
1963 71.657
1964 71.771
1965 71.849
1966 71.894
1967 71.921
1968 71.944
1969 71.971
1970 72.012
1971 72.075
1972 72.16
1973 72.269
1974 72.405
1975 72.573
1976 72.773
1977 73.001
1978 73.252
1979 73.521
1980 73.802
1981 74.088
1982 74.376
1983 74.659
1984 74.934
1985 75.197
1986 75.449
1987 75.691
1988 75.927
1989 76.157
1990 76.381
1991 76.602
1992 76.821
1993 77.038
1994 77.254
1995 77.468
1996 77.681
1997 77.89
1998 78.095
1999 78.295
2000 78.488
2001 78.674
2002 78.852
2003 79.022
2004 79.185
2005 79.343
2006 79.496
2007 79.646
2008 79.794
2009 79.942
2010 80.087
2011 80.23
2012 80.369
2013 80.503
2014 80.632
2015 80.759
2016 80.882
2017 81.004
2018 81.126
2019 81.248
2020 81.37
2021 81.494
2022 81.619
2023 81.743
2024 81.867
2025 81.992
2026 82.115
2027 82.238
2028 82.36
2029 82.481
2030 82.602
2031 82.721
2032 82.841
2033 82.961
2034 83.08
2035 83.2
2036 83.32
2037 83.441
2038 83.561
2039 83.681
2040 83.802
2041 83.921
2042 84.04
2043 84.158
2044 84.275
2045 84.392
2046 84.507
2047 84.623
2048 84.739
2049 84.854
2050 84.97
2051 85.086
2052 85.202
2053 85.319
2054 85.435
2055 85.551
2056 85.667
2057 85.782
2058 85.897
2059 86.012
2060 86.126
2061 86.24
2062 86.354
2063 86.467
2064 86.581
2065 86.695
2066 86.809
2067 86.923
2068 87.038
2069 87.152
2070 87.266
2071 87.379
2072 87.492
2073 87.605
2074 87.717
2075 87.829
2076 87.942
2077 88.055
2078 88.169
2079 88.285
2080 88.4
2081 88.515
2082 88.631
2083 88.745
2084 88.858
2085 88.971
2086 89.083
2087 89.195
2088 89.308
2089 89.421
2090 89.535
2091 89.649
2092 89.763
2093 89.876
2094 89.989
2095 90.102
2096 90.214
2097 90.325
2098 90.436
2099 90.546