Year Years
1950 38.74
1951 38.966
1952 39.404
1953 39.816
1954 40.201
1955 40.559
1956 40.891
1957 41.198
1958 41.484
1959 41.752
1960 42.009
1961 42.259
1962 42.512
1963 42.772
1964 43.046
1965 43.338
1966 43.649
1967 43.976
1968 44.316
1969 44.671
1970 45.045
1971 45.446
1972 45.871
1973 46.313
1974 46.761
1975 47.2
1976 47.61
1977 47.978
1978 48.291
1979 48.542
1980 48.732
1981 48.868
1982 48.962
1983 49.023
1984 49.051
1985 49.034
1986 48.952
1987 48.798
1988 48.58
1989 48.316
1990 48.03
1991 47.749
1992 47.507
1993 47.337
1994 47.269
1995 47.327
1996 47.529
1997 47.868
1998 48.335
1999 48.927
2000 49.65
2001 50.505
2002 51.476
2003 52.532
2004 53.639
2005 54.75
2006 55.814
2007 56.803
2008 57.703
2009 58.508
2010 59.243
2011 59.952
2012 60.679
2013 61.45
2014 62.258
2015 63.076
2016 63.856
2017 64.551
2018 65.129
2019 65.582
2020 65.921
2021 66.169
2022 66.369
2023 66.557
2024 66.75
2025 66.962
2026 67.192
2027 67.43
2028 67.666
2029 67.9
2030 68.131
2031 68.358
2032 68.58
2033 68.796
2034 69.005
2035 69.208
2036 69.405
2037 69.596
2038 69.783
2039 69.967
2040 70.149
2041 70.331
2042 70.513
2043 70.696
2044 70.881
2045 71.069
2046 71.261
2047 71.455
2048 71.651
2049 71.849
2050 72.047
2051 72.244
2052 72.44
2053 72.634
2054 72.825
2055 73.013
2056 73.2
2057 73.385
2058 73.569
2059 73.751
2060 73.93
2061 74.105
2062 74.275
2063 74.439
2064 74.597
2065 74.749
2066 74.894
2067 75.034
2068 75.17
2069 75.303
2070 75.434
2071 75.563
2072 75.69
2073 75.816
2074 75.942
2075 76.068
2076 76.193
2077 76.319
2078 76.444
2079 76.568
2080 76.692
2081 76.816
2082 76.938
2083 77.06
2084 77.181
2085 77.302
2086 77.421
2087 77.541
2088 77.661
2089 77.78
2090 77.9
2091 78.02
2092 78.14
2093 78.26
2094 78.38
2095 78.5
2096 78.62
2097 78.74
2098 78.86
2099 78.98