Year Years 1950 58.043 1951 58.564 1952 59.581 1953 60.55 1954 61.473 1955 62.348 1956 63.175 1957 63.953 1958 64.682 1959 65.36 1960 65.985 1961 66.555 1962 67.071 1963 67.535 1964 67.952 1965 68.326 1966 68.66 1967 68.961 1968 69.239 1969 69.506 1970 69.772 1971 70.048 1972 70.34 1973 70.649 1974 70.976 1975 71.321 1976 71.68 1977 72.044 1978 72.401 1979 72.741 1980 73.051 1981 73.319 1982 73.541 1983 73.718 1984 73.851 1985 73.947 1986 74.017 1987 74.074 1988 74.131 1989 74.194 1990 74.264 1991 74.338 1992 74.41 1993 74.478 1994 74.545 1995 74.614 1996 74.69 1997 74.779 1998 74.886 1999 75.013 2000 75.162 2001 75.335 2002 75.53 2003 75.741 2004 75.965 2005 76.199 2006 76.44 2007 76.685 2008 76.928 2009 77.164 2010 77.388 2011 77.595 2012 77.785 2013 77.957 2014 78.114 2015 78.256 2016 78.389 2017 78.517 2018 78.644 2019 78.773 2020 78.904 2021 79.038 2022 79.171 2023 79.302 2024 79.432 2025 79.559 2026 79.685 2027 79.811 2028 79.936 2029 80.062 2030 80.187 2031 80.313 2032 80.437 2033 80.56 2034 80.682 2035 80.802 2036 80.922 2037 81.042 2038 81.162 2039 81.282 2040 81.402 2041 81.521 2042 81.64 2043 81.758 2044 81.876 2045 81.992 2046 82.108 2047 82.222 2048 82.337 2049 82.45 2050 82.564 2051 82.679 2052 82.795 2053 82.911 2054 83.028 2055 83.146 2056 83.263 2057 83.38 2058 83.496 2059 83.61 2060 83.723 2061 83.835 2062 83.946 2063 84.057 2064 84.167 2065 84.277 2066 84.387 2067 84.495 2068 84.603 2069 84.709 2070 84.816 2071 84.922 2072 85.028 2073 85.135 2074 85.242 2075 85.349 2076 85.457 2077 85.565 2078 85.673 2079 85.781 2080 85.889 2081 85.998 2082 86.107 2083 86.216 2084 86.326 2085 86.436 2086 86.545 2087 86.654 2088 86.763 2089 86.87 2090 86.977 2091 87.083 2092 87.188 2093 87.294 2094 87.399 2095 87.505 2096 87.611 2097 87.717 2098 87.823 2099 87.93