Year Years 1950 56.983 1951 57.563 1952 58.672 1953 59.68 1954 60.587 1955 61.393 1956 62.102 1957 62.716 1958 63.243 1959 63.694 1960 64.084 1961 64.429 1962 64.747 1963 65.053 1964 65.356 1965 65.66 1966 65.959 1967 66.242 1968 66.503 1969 66.745 1970 66.972 1971 67.19 1972 67.405 1973 67.626 1974 67.857 1975 68.11 1976 68.394 1977 68.706 1978 69.041 1979 69.387 1980 69.726 1981 70.036 1982 70.301 1983 70.51 1984 70.66 1985 70.757 1986 70.814 1987 70.851 1988 70.886 1989 70.924 1990 70.969 1991 71.018 1992 71.062 1993 71.098 1994 71.126 1995 71.148 1996 71.168 1997 71.19 1998 71.219 1999 71.259 2000 71.312 2001 71.382 2002 71.469 2003 71.572 2004 71.688 2005 71.816 2006 71.952 2007 72.093 2008 72.235 2009 72.377 2010 72.516 2011 72.654 2012 72.791 2013 72.929 2014 73.068 2015 73.208 2016 73.348 2017 73.488 2018 73.629 2019 73.77 2020 73.912 2021 74.055 2022 74.199 2023 74.344 2024 74.49 2025 74.638 2026 74.786 2027 74.934 2028 75.082 2029 75.23 2030 75.378 2031 75.527 2032 75.675 2033 75.825 2034 75.975 2035 76.126 2036 76.279 2037 76.433 2038 76.589 2039 76.745 2040 76.903 2041 77.061 2042 77.219 2043 77.377 2044 77.535 2045 77.693 2046 77.852 2047 78.011 2048 78.171 2049 78.331 2050 78.493 2051 78.655 2052 78.817 2053 78.98 2054 79.144 2055 79.308 2056 79.472 2057 79.638 2058 79.804 2059 79.971 2060 80.139 2061 80.307 2062 80.477 2063 80.646 2064 80.815 2065 80.984 2066 81.151 2067 81.317 2068 81.481 2069 81.643 2070 81.802 2071 81.96 2072 82.116 2073 82.271 2074 82.424 2075 82.575 2076 82.723 2077 82.869 2078 83.011 2079 83.15 2080 83.286 2081 83.419 2082 83.548 2083 83.675 2084 83.8 2085 83.923 2086 84.045 2087 84.165 2088 84.283 2089 84.4 2090 84.515 2091 84.627 2092 84.737 2093 84.844 2094 84.948 2095 85.048 2096 85.145 2097 85.238 2098 85.327 2099 85.413