Year Years 1950 56.098 1951 56.776 1952 58.075 1953 59.258 1954 60.326 1955 61.278 1956 62.117 1957 62.847 1958 63.472 1959 64.006 1960 64.459 1961 64.848 1962 65.188 1963 65.492 1964 65.77 1965 66.024 1966 66.249 1967 66.437 1968 66.58 1969 66.68 1970 66.737 1971 66.75 1972 66.724 1973 66.67 1974 66.598 1975 66.524 1976 66.463 1977 66.424 1978 66.411 1979 66.425 1980 66.461 1981 66.505 1982 66.544 1983 66.567 1984 66.574 1985 66.561 1986 66.532 1987 66.498 1988 66.472 1989 66.465 1990 66.494 1991 66.572 1992 66.706 1993 66.898 1994 67.148 1995 67.455 1996 67.815 1997 68.212 1998 68.628 1999 69.048 2000 69.451 2001 69.817 2002 70.139 2003 70.417 2004 70.653 2005 70.861 2006 71.063 2007 71.28 2008 71.526 2009 71.804 2010 72.107 2011 72.42 2012 72.722 2013 73 2014 73.25 2015 73.47 2016 73.668 2017 73.856 2018 74.043 2019 74.233 2020 74.43 2021 74.631 2022 74.835 2023 75.039 2024 75.243 2025 75.448 2026 75.652 2027 75.858 2028 76.065 2029 76.273 2030 76.482 2031 76.693 2032 76.905 2033 77.117 2034 77.33 2035 77.542 2036 77.754 2037 77.965 2038 78.175 2039 78.383 2040 78.589 2041 78.793 2042 78.994 2043 79.193 2044 79.389 2045 79.582 2046 79.769 2047 79.951 2048 80.128 2049 80.299 2050 80.464 2051 80.623 2052 80.778 2053 80.928 2054 81.075 2055 81.218 2056 81.358 2057 81.495 2058 81.629 2059 81.762 2060 81.892 2061 82.022 2062 82.149 2063 82.276 2064 82.401 2065 82.526 2066 82.648 2067 82.77 2068 82.889 2069 83.007 2070 83.124 2071 83.24 2072 83.355 2073 83.469 2074 83.584 2075 83.697 2076 83.811 2077 83.923 2078 84.035 2079 84.146 2080 84.257 2081 84.366 2082 84.476 2083 84.585 2084 84.695 2085 84.804 2086 84.915 2087 85.025 2088 85.137 2089 85.248 2090 85.36 2091 85.472 2092 85.584 2093 85.695 2094 85.806 2095 85.917 2096 86.027 2097 86.136 2098 86.245 2099 86.353