Year Years
1950 55.28
1951 55.757
1952 56.693
1953 57.588
1954 58.442
1955 59.256
1956 60.03
1957 60.762
1958 61.453
1959 62.103
1960 62.711
1961 63.277
1962 63.802
1963 64.287
1964 64.737
1965 65.151
1966 65.531
1967 65.879
1968 66.202
1969 66.507
1970 66.804
1971 67.104
1972 67.41
1973 67.726
1974 68.052
1975 68.386
1976 68.725
1977 69.059
1978 69.376
1979 69.666
1980 69.918
1981 70.121
1982 70.271
1983 70.367
1984 70.409
1985 70.4
1986 70.344
1987 70.25
1988 70.134
1989 70.006
1990 69.875
1991 69.749
1992 69.632
1993 69.53
1994 69.45
1995 69.398
1996 69.376
1997 69.384
1998 69.421
1999 69.491
2000 69.6
2001 69.755
2002 69.956
2003 70.2
2004 70.48
2005 70.789
2006 71.12
2007 71.46
2008 71.798
2009 72.124
2010 72.426
2011 72.695
2012 72.933
2013 73.141
2014 73.32
2015 73.474
2016 73.611
2017 73.738
2018 73.865
2019 73.994
2020 74.13
2021 74.272
2022 74.417
2023 74.562
2024 74.707
2025 74.853
2026 74.999
2027 75.145
2028 75.291
2029 75.438
2030 75.585
2031 75.734
2032 75.885
2033 76.038
2034 76.193
2035 76.35
2036 76.508
2037 76.667
2038 76.827
2039 76.987
2040 77.147
2041 77.308
2042 77.47
2043 77.633
2044 77.797
2045 77.963
2046 78.128
2047 78.294
2048 78.46
2049 78.626
2050 78.792
2051 78.959
2052 79.128
2053 79.298
2054 79.47
2055 79.643
2056 79.817
2057 79.99
2058 80.163
2059 80.334
2060 80.505
2061 80.676
2062 80.848
2063 81.021
2064 81.195
2065 81.368
2066 81.542
2067 81.714
2068 81.884
2069 82.051
2070 82.215
2071 82.376
2072 82.535
2073 82.69
2074 82.843
2075 82.993
2076 83.139
2077 83.281
2078 83.42
2079 83.555
2080 83.687
2081 83.815
2082 83.941
2083 84.064
2084 84.184
2085 84.303
2086 84.42
2087 84.535
2088 84.648
2089 84.759
2090 84.87
2091 84.979
2092 85.088
2093 85.195
2094 85.302
2095 85.408
2096 85.514
2097 85.618
2098 85.723
2099 85.826