Year Years
1950 39.02
1951 39.259
1952 39.737
1953 40.218
1954 40.703
1955 41.191
1956 41.681
1957 42.174
1958 42.671
1959 43.172
1960 43.677
1961 44.19
1962 44.715
1963 45.262
1964 45.842
1965 46.474
1966 47.177
1967 47.96
1968 48.825
1969 49.769
1970 50.786
1971 51.866
1972 52.987
1973 54.125
1974 55.261
1975 56.375
1976 57.454
1977 58.495
1978 59.492
1979 60.437
1980 61.325
1981 62.158
1982 62.942
1983 63.682
1984 64.378
1985 65.025
1986 65.617
1987 66.152
1988 66.635
1989 67.071
1990 67.469
1991 67.841
1992 68.198
1993 68.548
1994 68.896
1995 69.246
1996 69.599
1997 69.947
1998 70.283
1999 70.6
2000 70.888
2001 71.138
2002 71.344
2003 71.508
2004 71.635
2005 71.735
2006 71.823
2007 71.913
2008 72.017
2009 72.141
2010 72.286
2011 72.448
2012 72.617
2013 72.787
2014 72.953
2015 73.114
2016 73.271
2017 73.424
2018 73.577
2019 73.728
2020 73.878
2021 74.028
2022 74.176
2023 74.324
2024 74.472
2025 74.62
2026 74.768
2027 74.917
2028 75.065
2029 75.215
2030 75.364
2031 75.514
2032 75.664
2033 75.815
2034 75.965
2035 76.115
2036 76.265
2037 76.415
2038 76.564
2039 76.714
2040 76.864
2041 77.014
2042 77.164
2043 77.315
2044 77.466
2045 77.618
2046 77.77
2047 77.924
2048 78.078
2049 78.233
2050 78.388
2051 78.544
2052 78.7
2053 78.856
2054 79.012
2055 79.168
2056 79.325
2057 79.482
2058 79.64
2059 79.798
2060 79.958
2061 80.118
2062 80.279
2063 80.441
2064 80.603
2065 80.765
2066 80.927
2067 81.089
2068 81.251
2069 81.412
2070 81.572
2071 81.733
2072 81.892
2073 82.051
2074 82.21
2075 82.366
2076 82.522
2077 82.675
2078 82.826
2079 82.975
2080 83.12
2081 83.263
2082 83.403
2083 83.54
2084 83.674
2085 83.805
2086 83.934
2087 84.06
2088 84.184
2089 84.305
2090 84.424
2091 84.541
2092 84.656
2093 84.768
2094 84.879
2095 84.988
2096 85.095
2097 85.2
2098 85.303
2099 85.404