Year Years
1950 40.85
1951 41.207
1952 41.92
1953 42.628
1954 43.33
1955 44.028
1956 44.72
1957 45.403
1958 46.076
1959 46.732
1960 47.366
1961 47.972
1962 48.542
1963 49.073
1964 49.564
1965 50.016
1966 50.435
1967 50.827
1968 51.2
1969 51.557
1970 51.901
1971 52.231
1972 52.546
1973 52.846
1974 53.131
1975 53.408
1976 53.681
1977 53.954
1978 54.222
1979 54.48
1980 54.723
1981 54.944
1982 55.131
1983 55.275
1984 55.365
1985 55.391
1986 55.344
1987 55.223
1988 55.032
1989 54.774
1990 54.445
1991 54.038
1992 53.567
1993 53.054
1994 52.525
1995 52.003
1996 51.508
1997 51.065
1998 50.71
1999 50.479
2000 50.431
2001 50.618
2002 51.048
2003 51.709
2004 52.576
2005 53.606
2006 54.743
2007 55.913
2008 57.053
2009 58.118
2010 59.077
2011 59.92
2012 60.672
2013 61.354
2014 61.968
2015 62.52
2016 63.016
2017 63.466
2018 63.88
2019 64.268
2020 64.635
2021 64.987
2022 65.322
2023 65.643
2024 65.953
2025 66.255
2026 66.551
2027 66.841
2028 67.125
2029 67.402
2030 67.674
2031 67.94
2032 68.199
2033 68.451
2034 68.695
2035 68.931
2036 69.157
2037 69.375
2038 69.585
2039 69.786
2040 69.981
2041 70.17
2042 70.353
2043 70.533
2044 70.711
2045 70.889
2046 71.066
2047 71.245
2048 71.424
2049 71.605
2050 71.787
2051 71.972
2052 72.158
2053 72.345
2054 72.532
2055 72.718
2056 72.904
2057 73.089
2058 73.273
2059 73.454
2060 73.632
2061 73.807
2062 73.978
2063 74.146
2064 74.309
2065 74.468
2066 74.62
2067 74.767
2068 74.909
2069 75.045
2070 75.177
2071 75.306
2072 75.432
2073 75.558
2074 75.683
2075 75.808
2076 75.933
2077 76.058
2078 76.183
2079 76.308
2080 76.432
2081 76.555
2082 76.679
2083 76.802
2084 76.924
2085 77.047
2086 77.168
2087 77.289
2088 77.41
2089 77.531
2090 77.651
2091 77.771
2092 77.891
2093 78.01
2094 78.13
2095 78.25
2096 78.37
2097 78.49
2098 78.61
2099 78.73