Year Years 1950 67.672 1951 68.121 1952 68.979 1953 69.758 1954 70.46 1955 71.084 1956 71.629 1957 72.097 1958 72.488 1959 72.806 1960 73.051 1961 73.23 1962 73.349 1963 73.42 1964 73.453 1965 73.462 1966 73.455 1967 73.44 1968 73.426 1969 73.422 1970 73.439 1971 73.483 1972 73.553 1973 73.643 1974 73.752 1975 73.868 1976 73.982 1977 74.083 1978 74.167 1979 74.234 1980 74.289 1981 74.341 1982 74.403 1983 74.483 1984 74.587 1985 74.716 1986 74.868 1987 75.037 1988 75.218 1989 75.411 1990 75.619 1991 75.845 1992 76.092 1993 76.357 1994 76.636 1995 76.923 1996 77.208 1997 77.484 1998 77.747 1999 77.995 2000 78.231 2001 78.462 2002 78.695 2003 78.936 2004 79.186 2005 79.442 2006 79.703 2007 79.961 2008 80.212 2009 80.45 2010 80.672 2011 80.873 2012 81.055 2013 81.219 2014 81.366 2015 81.499 2016 81.622 2017 81.741 2018 81.858 2019 81.976 2020 82.098 2021 82.222 2022 82.347 2023 82.47 2024 82.593 2025 82.716 2026 82.838 2027 82.961 2028 83.085 2029 83.209 2030 83.332 2031 83.455 2032 83.577 2033 83.697 2034 83.816 2035 83.933 2036 84.049 2037 84.164 2038 84.28 2039 84.395 2040 84.511 2041 84.627 2042 84.742 2043 84.857 2044 84.972 2045 85.087 2046 85.2 2047 85.313 2048 85.426 2049 85.539 2050 85.651 2051 85.763 2052 85.875 2053 85.986 2054 86.098 2055 86.21 2056 86.322 2057 86.434 2058 86.547 2059 86.659 2060 86.771 2061 86.882 2062 86.994 2063 87.104 2064 87.215 2065 87.325 2066 87.435 2067 87.546 2068 87.657 2069 87.768 2070 87.88 2071 87.992 2072 88.103 2073 88.215 2074 88.325 2075 88.436 2076 88.546 2077 88.656 2078 88.766 2079 88.877 2080 88.987 2081 89.096 2082 89.204 2083 89.312 2084 89.419 2085 89.525 2086 89.631 2087 89.738 2088 89.845 2089 89.953 2090 90.062 2091 90.172 2092 90.283 2093 90.395 2094 90.508 2095 90.622 2096 90.736 2097 90.852 2098 90.967 2099 91.084