Year Years 1950 66.343 1951 66.45 1952 66.661 1953 66.867 1954 67.067 1955 67.262 1956 67.45 1957 67.632 1958 67.806 1959 67.972 1960 68.129 1961 68.274 1962 68.408 1963 68.531 1964 68.644 1965 68.75 1966 68.849 1967 68.945 1968 69.043 1969 69.148 1970 69.264 1971 69.397 1972 69.548 1973 69.72 1974 69.915 1975 70.137 1976 70.391 1977 70.675 1978 70.981 1979 71.305 1980 71.634 1981 71.957 1982 72.265 1983 72.552 1984 72.815 1985 73.053 1986 73.271 1987 73.478 1988 73.683 1989 73.889 1990 74.099 1991 74.311 1992 74.524 1993 74.739 1994 74.956 1995 75.18 1996 75.414 1997 75.661 1998 75.919 1999 76.188 2000 76.465 2001 76.745 2002 77.024 2003 77.297 2004 77.563 2005 77.822 2006 78.076 2007 78.328 2008 78.58 2009 78.832 2010 79.082 2011 79.326 2012 79.564 2013 79.794 2014 80.015 2015 80.23 2016 80.441 2017 80.65 2018 80.859 2019 81.069 2020 81.28 2021 81.491 2022 81.7 2023 81.904 2024 82.103 2025 82.296 2026 82.479 2027 82.654 2028 82.819 2029 82.977 2030 83.127 2031 83.271 2032 83.409 2033 83.545 2034 83.678 2035 83.81 2036 83.94 2037 84.068 2038 84.194 2039 84.317 2040 84.44 2041 84.561 2042 84.682 2043 84.803 2044 84.923 2045 85.042 2046 85.162 2047 85.28 2048 85.398 2049 85.515 2050 85.632 2051 85.748 2052 85.864 2053 85.98 2054 86.096 2055 86.212 2056 86.327 2057 86.441 2058 86.553 2059 86.664 2060 86.775 2061 86.886 2062 86.998 2063 87.111 2064 87.225 2065 87.34 2066 87.455 2067 87.569 2068 87.682 2069 87.794 2070 87.905 2071 88.016 2072 88.127 2073 88.24 2074 88.354 2075 88.469 2076 88.585 2077 88.701 2078 88.816 2079 88.93 2080 89.043 2081 89.154 2082 89.265 2083 89.374 2084 89.483 2085 89.591 2086 89.699 2087 89.808 2088 89.917 2089 90.026 2090 90.136 2091 90.246 2092 90.355 2093 90.464 2094 90.572 2095 90.678 2096 90.784 2097 90.889 2098 90.993 2099 91.095