Year Years 1950 44.291 1951 44.374 1952 44.558 1953 44.782 1954 45.046 1955 45.35 1956 45.693 1957 46.077 1958 46.501 1959 46.966 1960 47.471 1961 48.017 1962 48.6 1963 49.217 1964 49.863 1965 50.529 1966 51.209 1967 51.896 1968 52.587 1969 53.277 1970 53.966 1971 54.656 1972 55.351 1973 56.054 1974 56.764 1975 57.481 1976 58.205 1977 58.934 1978 59.661 1979 60.382 1980 61.091 1981 61.783 1982 62.454 1983 63.099 1984 63.712 1985 64.287 1986 64.82 1987 65.31 1988 65.76 1989 66.172 1990 66.548 1991 66.895 1992 67.218 1993 67.522 1994 67.81 1995 68.082 1996 68.336 1997 68.569 1998 68.78 1999 68.97 2000 69.144 2001 69.303 2002 69.451 2003 69.594 2004 69.735 2005 69.878 2006 70.024 2007 70.174 2008 70.328 2009 70.486 2010 70.647 2011 70.81 2012 70.973 2013 71.134 2014 71.293 2015 71.449 2016 71.603 2017 71.756 2018 71.908 2019 72.059 2020 72.211 2021 72.363 2022 72.515 2023 72.667 2024 72.82 2025 72.971 2026 73.123 2027 73.273 2028 73.422 2029 73.571 2030 73.719 2031 73.868 2032 74.018 2033 74.169 2034 74.321 2035 74.474 2036 74.627 2037 74.78 2038 74.931 2039 75.082 2040 75.233 2041 75.384 2042 75.536 2043 75.691 2044 75.848 2045 76.006 2046 76.166 2047 76.327 2048 76.488 2049 76.649 2050 76.809 2051 76.969 2052 77.129 2053 77.29 2054 77.451 2055 77.613 2056 77.775 2057 77.938 2058 78.101 2059 78.266 2060 78.431 2061 78.598 2062 78.766 2063 78.936 2064 79.106 2065 79.278 2066 79.45 2067 79.623 2068 79.796 2069 79.968 2070 80.141 2071 80.313 2072 80.485 2073 80.656 2074 80.827 2075 80.997 2076 81.168 2077 81.337 2078 81.506 2079 81.675 2080 81.841 2081 82.006 2082 82.169 2083 82.33 2084 82.488 2085 82.644 2086 82.798 2087 82.949 2088 83.1 2089 83.247 2090 83.393 2091 83.535 2092 83.673 2093 83.808 2094 83.938 2095 84.063 2096 84.183 2097 84.298 2098 84.409 2099 84.514