Year Years 1950 47.073 1951 47.37 1952 47.961 1953 48.547 1954 49.127 1955 49.702 1956 50.27 1957 50.831 1958 51.383 1959 51.924 1960 52.452 1961 52.962 1962 53.454 1963 53.928 1964 54.384 1965 54.827 1966 55.261 1967 55.693 1968 56.126 1969 56.564 1970 57.012 1971 57.468 1972 57.933 1973 58.403 1974 58.876 1975 59.345 1976 59.799 1977 60.235 1978 60.66 1979 61.085 1980 61.544 1981 62.083 1982 62.719 1983 63.446 1984 64.238 1985 65.039 1986 65.776 1987 66.386 1988 66.828 1989 67.089 1990 67.175 1991 67.117 1992 66.976 1993 66.815 1994 66.668 1995 66.565 1996 66.523 1997 66.538 1998 66.608 1999 66.738 2000 66.937 2001 67.211 2002 67.548 2003 67.931 2004 68.345 2005 68.767 2006 69.174 2007 69.549 2008 69.881 2009 70.164 2010 70.402 2011 70.603 2012 70.789 2013 70.974 2014 71.166 2015 71.368 2016 71.581 2017 71.798 2018 72.016 2019 72.233 2020 72.45 2021 72.666 2022 72.883 2023 73.099 2024 73.315 2025 73.531 2026 73.747 2027 73.961 2028 74.174 2029 74.387 2030 74.599 2031 74.812 2032 75.025 2033 75.24 2034 75.456 2035 75.673 2036 75.891 2037 76.109 2038 76.328 2039 76.546 2040 76.764 2041 76.983 2042 77.202 2043 77.422 2044 77.642 2045 77.863 2046 78.083 2047 78.302 2048 78.52 2049 78.736 2050 78.95 2051 79.161 2052 79.369 2053 79.575 2054 79.777 2055 79.975 2056 80.169 2057 80.359 2058 80.545 2059 80.726 2060 80.902 2061 81.074 2062 81.24 2063 81.402 2064 81.56 2065 81.714 2066 81.864 2067 82.011 2068 82.156 2069 82.299 2070 82.44 2071 82.578 2072 82.714 2073 82.848 2074 82.98 2075 83.109 2076 83.235 2077 83.359 2078 83.481 2079 83.601 2080 83.719 2081 83.837 2082 83.955 2083 84.072 2084 84.19 2085 84.308 2086 84.425 2087 84.541 2088 84.657 2089 84.771 2090 84.884 2091 84.996 2092 85.106 2093 85.216 2094 85.325 2095 85.433 2096 85.541 2097 85.647 2098 85.754 2099 85.859