Year Years
1950 37.4
1951 37.67
1952 38.217
1953 38.78
1954 39.358
1955 39.952
1956 40.559
1957 41.18
1958 41.808
1959 42.44
1960 43.067
1961 43.681
1962 44.274
1963 44.841
1964 45.376
1965 45.88
1966 46.352
1967 46.8
1968 47.231
1969 47.652
1970 48.065
1971 48.471
1972 48.872
1973 49.276
1974 49.689
1975 50.125
1976 50.601
1977 51.119
1978 51.678
1979 52.269
1980 52.88
1981 53.494
1982 54.089
1983 54.647
1984 55.157
1985 55.608
1986 55.997
1987 56.332
1988 56.623
1989 56.875
1990 57.094
1991 57.288
1992 57.465
1993 57.631
1994 57.789
1995 57.937
1996 58.068
1997 58.179
1998 58.271
1999 58.348
2000 58.422
2001 58.506
2002 58.611
2003 58.744
2004 58.912
2005 59.117
2006 59.359
2007 59.631
2008 59.919
2009 60.215
2010 60.506
2011 60.78
2012 61.029
2013 61.25
2014 61.44
2015 61.601
2016 61.737
2017 61.861
2018 61.979
2019 62.097
2020 62.217
2021 62.34
2022 62.461
2023 62.581
2024 62.697
2025 62.812
2026 62.926
2027 63.038
2028 63.149
2029 63.259
2030 63.367
2031 63.474
2032 63.578
2033 63.68
2034 63.78
2035 63.877
2036 63.972
2037 64.065
2038 64.157
2039 64.247
2040 64.338
2041 64.427
2042 64.517
2043 64.607
2044 64.697
2045 64.787
2046 64.876
2047 64.965
2048 65.053
2049 65.141
2050 65.227
2051 65.314
2052 65.4
2053 65.485
2054 65.57
2055 65.655
2056 65.737
2057 65.817
2058 65.895
2059 65.972
2060 66.047
2061 66.121
2062 66.196
2063 66.271
2064 66.348
2065 66.427
2066 66.508
2067 66.59
2068 66.673
2069 66.756
2070 66.839
2071 66.919
2072 66.997
2073 67.072
2074 67.145
2075 67.217
2076 67.287
2077 67.359
2078 67.432
2079 67.506
2080 67.583
2081 67.66
2082 67.738
2083 67.815
2084 67.891
2085 67.968
2086 68.045
2087 68.123
2088 68.203
2089 68.284
2090 68.367
2091 68.451
2092 68.536
2093 68.621
2094 68.706
2095 68.79
2096 68.875
2097 68.959
2098 69.042
2099 69.125