Year Years 1950 48.235 1951 48.449 1952 48.88 1953 49.314 1954 49.752 1955 50.194 1956 50.639 1957 51.087 1958 51.537 1959 51.987 1960 52.434 1961 52.877 1962 53.313 1963 53.738 1964 54.152 1965 54.553 1966 54.944 1967 55.325 1968 55.696 1969 56.056 1970 56.399 1971 56.721 1972 57.019 1973 57.293 1974 57.545 1975 57.78 1976 58.004 1977 58.223 1978 58.445 1979 58.674 1980 58.912 1981 59.159 1982 59.412 1983 59.67 1984 59.935 1985 60.205 1986 60.479 1987 60.759 1988 61.047 1989 61.349 1990 61.673 1991 62.03 1992 62.424 1993 62.855 1994 63.32 1995 63.809 1996 64.314 1997 64.82 1998 65.317 1999 65.796 2000 66.252 2001 66.685 2002 67.098 2003 67.498 2004 67.886 2005 68.266 2006 68.643 2007 69.019 2008 69.395 2009 69.767 2010 70.132 2011 70.481 2012 70.808 2013 71.11 2014 71.388 2015 71.644 2016 71.883 2017 72.112 2018 72.34 2019 72.569 2020 72.801 2021 73.036 2022 73.272 2023 73.506 2024 73.739 2025 73.972 2026 74.203 2027 74.435 2028 74.667 2029 74.9 2030 75.134 2031 75.368 2032 75.604 2033 75.84 2034 76.076 2035 76.312 2036 76.547 2037 76.78 2038 77.012 2039 77.242 2040 77.471 2041 77.701 2042 77.931 2043 78.163 2044 78.396 2045 78.63 2046 78.864 2047 79.096 2048 79.325 2049 79.55 2050 79.769 2051 79.983 2052 80.189 2053 80.39 2054 80.584 2055 80.771 2056 80.953 2057 81.129 2058 81.3 2059 81.468 2060 81.631 2061 81.79 2062 81.946 2063 82.098 2064 82.246 2065 82.391 2066 82.533 2067 82.673 2068 82.81 2069 82.946 2070 83.08 2071 83.214 2072 83.347 2073 83.48 2074 83.613 2075 83.745 2076 83.876 2077 84.005 2078 84.132 2079 84.257 2080 84.38 2081 84.502 2082 84.622 2083 84.741 2084 84.859 2085 84.977 2086 85.095 2087 85.212 2088 85.328 2089 85.444 2090 85.56 2091 85.676 2092 85.792 2093 85.909 2094 86.026 2095 86.143 2096 86.261 2097 86.38 2098 86.499 2099 86.619