Year Years
1950 38.46
1951 38.163
1952 37.713
1953 37.553
1954 37.681
1955 38.097
1956 38.793
1957 39.753
1958 40.954
1959 42.351
1960 43.893
1961 45.52
1962 47.165
1963 48.77
1964 50.293
1965 51.713
1966 53.035
1967 54.295
1968 55.516
1969 56.698
1970 57.837
1971 58.925
1972 59.955
1973 60.921
1974 61.825
1975 62.669
1976 63.458
1977 64.2
1978 64.9
1979 65.562
1980 66.182
1981 66.755
1982 67.277
1983 67.75
1984 68.179
1985 68.575
1986 68.95
1987 69.314
1988 69.674
1989 70.031
1990 70.377
1991 70.702
1992 70.994
1993 71.246
1994 71.459
1995 71.635
1996 71.78
1997 71.907
1998 72.03
1999 72.159
2000 72.314
2001 72.511
2002 72.753
2003 73.034
2004 73.343
2005 73.655
2006 73.938
2007 74.168
2008 74.33
2009 74.426
2010 74.468
2011 74.483
2012 74.503
2013 74.553
2014 74.643
2015 74.775
2016 74.941
2017 75.123
2018 75.305
2019 75.482
2020 75.651
2021 75.81
2022 75.965
2023 76.116
2024 76.266
2025 76.413
2026 76.558
2027 76.701
2028 76.842
2029 76.981
2030 77.12
2031 77.257
2032 77.394
2033 77.53
2034 77.665
2035 77.799
2036 77.932
2037 78.065
2038 78.196
2039 78.325
2040 78.454
2041 78.581
2042 78.707
2043 78.833
2044 78.957
2045 79.082
2046 79.206
2047 79.329
2048 79.453
2049 79.577
2050 79.701
2051 79.825
2052 79.95
2053 80.074
2054 80.198
2055 80.32
2056 80.44
2057 80.558
2058 80.673
2059 80.785
2060 80.897
2061 81.008
2062 81.12
2063 81.233
2064 81.349
2065 81.465
2066 81.582
2067 81.698
2068 81.812
2069 81.925
2070 82.037
2071 82.147
2072 82.259
2073 82.371
2074 82.483
2075 82.597
2076 82.709
2077 82.821
2078 82.931
2079 83.039
2080 83.147
2081 83.253
2082 83.36
2083 83.467
2084 83.575
2085 83.684
2086 83.794
2087 83.904
2088 84.014
2089 84.123
2090 84.232
2091 84.339
2092 84.447
2093 84.554
2094 84.66
2095 84.766
2096 84.872
2097 84.978
2098 85.083
2099 85.188