Year Years 1950 56.442 1951 56.834 1952 57.61 1953 58.372 1954 59.119 1955 59.852 1956 60.572 1957 61.278 1958 61.974 1959 62.661 1960 63.344 1961 64.024 1962 64.706 1963 65.388 1964 66.069 1965 66.746 1966 67.415 1967 68.071 1968 68.705 1969 69.312 1970 69.885 1971 70.418 1972 70.91 1973 71.363 1974 71.779 1975 72.16 1976 72.514 1977 72.847 1978 73.165 1979 73.473 1980 73.772 1981 74.063 1982 74.344 1983 74.611 1984 74.867 1985 75.11 1986 75.342 1987 75.562 1988 75.771 1989 75.97 1990 76.159 1991 76.339 1992 76.511 1993 76.674 1994 76.832 1995 76.986 1996 77.138 1997 77.289 1998 77.439 1999 77.589 2000 77.736 2001 77.877 2002 78.011 2003 78.136 2004 78.253 2005 78.367 2006 78.479 2007 78.595 2008 78.717 2009 78.847 2010 78.985 2011 79.131 2012 79.28 2013 79.432 2014 79.584 2015 79.735 2016 79.885 2017 80.034 2018 80.181 2019 80.326 2020 80.47 2021 80.611 2022 80.752 2023 80.891 2024 81.03 2025 81.168 2026 81.306 2027 81.443 2028 81.579 2029 81.715 2030 81.849 2031 81.982 2032 82.114 2033 82.245 2034 82.375 2035 82.503 2036 82.631 2037 82.759 2038 82.886 2039 83.012 2040 83.138 2041 83.263 2042 83.388 2043 83.511 2044 83.632 2045 83.753 2046 83.873 2047 83.992 2048 84.111 2049 84.229 2050 84.347 2051 84.465 2052 84.581 2053 84.697 2054 84.812 2055 84.927 2056 85.041 2057 85.154 2058 85.268 2059 85.382 2060 85.496 2061 85.61 2062 85.723 2063 85.836 2064 85.949 2065 86.062 2066 86.173 2067 86.284 2068 86.395 2069 86.506 2070 86.616 2071 86.726 2072 86.836 2073 86.945 2074 87.055 2075 87.165 2076 87.275 2077 87.385 2078 87.496 2079 87.606 2080 87.716 2081 87.826 2082 87.935 2083 88.044 2084 88.153 2085 88.261 2086 88.369 2087 88.477 2088 88.585 2089 88.693 2090 88.801 2091 88.909 2092 89.016 2093 89.123 2094 89.23 2095 89.337 2096 89.443 2097 89.548 2098 89.653 2099 89.757