Year Years 1950 70.911 1951 71.14 1952 71.576 1953 71.969 1954 72.319 1955 72.625 1956 72.89 1957 73.115 1958 73.305 1959 73.467 1960 73.61 1961 73.741 1962 73.871 1963 74.007 1964 74.152 1965 74.304 1966 74.456 1967 74.599 1968 74.729 1969 74.845 1970 74.95 1971 75.049 1972 75.149 1973 75.256 1974 75.375 1975 75.512 1976 75.669 1977 75.846 1978 76.038 1979 76.244 1980 76.455 1981 76.664 1982 76.865 1983 77.053 1984 77.229 1985 77.396 1986 77.56 1987 77.729 1988 77.906 1989 78.093 1990 78.285 1991 78.475 1992 78.656 1993 78.825 1994 78.982 1995 79.131 1996 79.279 1997 79.431 1998 79.595 1999 79.774 2000 79.971 2001 80.186 2002 80.417 2003 80.657 2004 80.901 2005 81.141 2006 81.37 2007 81.582 2008 81.774 2009 81.944 2010 82.094 2011 82.226 2012 82.349 2013 82.466 2014 82.583 2015 82.701 2016 82.822 2017 82.943 2018 83.065 2019 83.187 2020 83.31 2021 83.434 2022 83.558 2023 83.682 2024 83.805 2025 83.927 2026 84.049 2027 84.169 2028 84.289 2029 84.408 2030 84.527 2031 84.645 2032 84.762 2033 84.88 2034 84.998 2035 85.116 2036 85.233 2037 85.351 2038 85.467 2039 85.584 2040 85.7 2041 85.816 2042 85.933 2043 86.049 2044 86.167 2045 86.284 2046 86.402 2047 86.521 2048 86.639 2049 86.758 2050 86.876 2051 86.994 2052 87.111 2053 87.228 2054 87.345 2055 87.462 2056 87.577 2057 87.693 2058 87.808 2059 87.922 2060 88.037 2061 88.15 2062 88.263 2063 88.375 2064 88.487 2065 88.599 2066 88.712 2067 88.825 2068 88.938 2069 89.053 2070 89.169 2071 89.285 2072 89.401 2073 89.518 2074 89.634 2075 89.751 2076 89.867 2077 89.982 2078 90.097 2079 90.212 2080 90.326 2081 90.44 2082 90.554 2083 90.667 2084 90.781 2085 90.895 2086 91.009 2087 91.123 2088 91.237 2089 91.351 2090 91.465 2091 91.579 2092 91.693 2093 91.807 2094 91.921 2095 92.035 2096 92.149 2097 92.263 2098 92.377 2099 92.491