Year Years 1950 56.364 1951 56.715 1952 57.397 1953 58.041 1954 58.646 1955 59.214 1956 59.744 1957 60.239 1958 60.7 1959 61.134 1960 61.544 1961 61.937 1962 62.322 1963 62.704 1964 63.088 1965 63.48 1966 63.884 1967 64.297 1968 64.713 1969 65.127 1970 65.528 1971 65.899 1972 66.236 1973 66.536 1974 66.806 1975 67.065 1976 67.335 1977 67.637 1978 67.978 1979 68.356 1980 68.757 1981 69.16 1982 69.537 1983 69.87 1984 70.147 1985 70.368 1986 70.536 1987 70.667 1988 70.775 1989 70.868 1990 70.951 1991 71.025 1992 71.092 1993 71.153 1994 71.209 1995 71.261 1996 71.306 1997 71.343 1998 71.377 1999 71.415 2000 71.471 2001 71.562 2002 71.694 2003 71.873 2004 72.095 2005 72.353 2006 72.634 2007 72.921 2008 73.198 2009 73.458 2010 73.693 2011 73.902 2012 74.09 2013 74.263 2014 74.424 2015 74.575 2016 74.718 2017 74.856 2018 74.992 2019 75.129 2020 75.266 2021 75.404 2022 75.542 2023 75.679 2024 75.815 2025 75.95 2026 76.083 2027 76.214 2028 76.344 2029 76.473 2030 76.602 2031 76.73 2032 76.858 2033 76.987 2034 77.116 2035 77.245 2036 77.375 2037 77.506 2038 77.636 2039 77.765 2040 77.894 2041 78.021 2042 78.146 2043 78.27 2044 78.392 2045 78.513 2046 78.633 2047 78.752 2048 78.872 2049 78.991 2050 79.111 2051 79.231 2052 79.35 2053 79.469 2054 79.588 2055 79.707 2056 79.825 2057 79.942 2058 80.059 2059 80.176 2060 80.292 2061 80.408 2062 80.522 2063 80.636 2064 80.748 2065 80.861 2066 80.973 2067 81.085 2068 81.198 2069 81.311 2070 81.425 2071 81.539 2072 81.653 2073 81.767 2074 81.88 2075 81.992 2076 82.104 2077 82.214 2078 82.324 2079 82.432 2080 82.541 2081 82.649 2082 82.757 2083 82.865 2084 82.974 2085 83.084 2086 83.194 2087 83.305 2088 83.416 2089 83.528 2090 83.64 2091 83.752 2092 83.864 2093 83.975 2094 84.086 2095 84.197 2096 84.307 2097 84.416 2098 84.525 2099 84.633