Year Years
1950 42.68
1951 43.039
1952 43.754
1953 44.46
1954 45.156
1955 45.844
1956 46.522
1957 47.19
1958 47.846
1959 48.487
1960 49.111
1961 49.715
1962 50.298
1963 50.86
1964 51.404
1965 51.934
1966 52.454
1967 52.971
1968 53.492
1969 54.022
1970 54.571
1971 55.15
1972 55.757
1973 56.387
1974 57.029
1975 57.666
1976 58.273
1977 58.836
1978 59.345
1979 59.801
1980 60.217
1981 60.616
1982 61.02
1983 61.444
1984 61.888
1985 62.357
1986 62.851
1987 63.347
1988 63.813
1989 64.214
1990 64.505
1991 64.638
1992 64.587
1993 64.342
1994 63.9
1995 63.254
1996 62.402
1997 61.391
1998 60.29
1999 59.163
2000 58.079
2001 57.098
2002 56.271
2003 55.651
2004 55.29
2005 55.261
2006 55.626
2007 56.362
2008 57.414
2009 58.721
2010 60.191
2011 61.717
2012 63.196
2013 64.536
2014 65.677
2015 66.579
2016 67.241
2017 67.724
2018 68.086
2019 68.355
2020 68.563
2021 68.737
2022 68.897
2023 69.062
2024 69.25
2025 69.468
2026 69.715
2027 69.975
2028 70.237
2029 70.499
2030 70.759
2031 71.02
2032 71.281
2033 71.544
2034 71.809
2035 72.074
2036 72.34
2037 72.606
2038 72.871
2039 73.135
2040 73.396
2041 73.657
2042 73.915
2043 74.173
2044 74.428
2045 74.679
2046 74.928
2047 75.172
2048 75.411
2049 75.645
2050 75.872
2051 76.092
2052 76.306
2053 76.514
2054 76.716
2055 76.913
2056 77.106
2057 77.296
2058 77.483
2059 77.667
2060 77.848
2061 78.024
2062 78.194
2063 78.358
2064 78.515
2065 78.666
2066 78.812
2067 78.954
2068 79.094
2069 79.232
2070 79.369
2071 79.507
2072 79.645
2073 79.782
2074 79.92
2075 80.057
2076 80.195
2077 80.331
2078 80.466
2079 80.6
2080 80.732
2081 80.864
2082 80.996
2083 81.127
2084 81.259
2085 81.391
2086 81.523
2087 81.654
2088 81.785
2089 81.916
2090 82.047
2091 82.176
2092 82.306
2093 82.435
2094 82.563
2095 82.692
2096 82.819
2097 82.947
2098 83.074
2099 83.2