Year Years 1950 52.426 1951 52.697 1952 53.242 1953 53.792 1954 54.345 1955 54.902 1956 55.461 1957 56.023 1958 56.584 1959 57.141 1960 57.69 1961 58.225 1962 58.743 1963 59.239 1964 59.712 1965 60.165 1966 60.601 1967 61.025 1968 61.44 1969 61.847 1970 62.243 1971 62.625 1972 62.988 1973 63.33 1974 63.652 1975 63.956 1976 64.245 1977 64.524 1978 64.795 1979 65.059 1980 65.314 1981 65.557 1982 65.786 1983 65.997 1984 66.191 1985 66.369 1986 66.533 1987 66.687 1988 66.833 1989 66.974 1990 67.113 1991 67.251 1992 67.389 1993 67.527 1994 67.665 1995 67.804 1996 67.944 1997 68.083 1998 68.221 1999 68.357 2000 68.491 2001 68.62 2002 68.746 2003 68.867 2004 68.984 2005 69.097 2006 69.204 2007 69.307 2008 69.409 2009 69.512 2010 69.621 2011 69.742 2012 69.876 2013 70.027 2014 70.192 2015 70.372 2016 70.561 2017 70.755 2018 70.95 2019 71.143 2020 71.333 2021 71.521 2022 71.707 2023 71.895 2024 72.083 2025 72.273 2026 72.463 2027 72.654 2028 72.845 2029 73.036 2030 73.228 2031 73.421 2032 73.613 2033 73.806 2034 74 2035 74.193 2036 74.387 2037 74.581 2038 74.776 2039 74.97 2040 75.166 2041 75.363 2042 75.561 2043 75.761 2044 75.963 2045 76.166 2046 76.371 2047 76.577 2048 76.783 2049 76.989 2050 77.196 2051 77.402 2052 77.607 2053 77.812 2054 78.015 2055 78.218 2056 78.421 2057 78.623 2058 78.825 2059 79.026 2060 79.225 2061 79.422 2062 79.615 2063 79.804 2064 79.988 2065 80.167 2066 80.341 2067 80.51 2068 80.674 2069 80.834 2070 80.989 2071 81.142 2072 81.291 2073 81.437 2074 81.58 2075 81.721 2076 81.859 2077 81.994 2078 82.125 2079 82.254 2080 82.381 2081 82.507 2082 82.632 2083 82.756 2084 82.88 2085 83.004 2086 83.127 2087 83.249 2088 83.369 2089 83.487 2090 83.604 2091 83.72 2092 83.835 2093 83.949 2094 84.063 2095 84.176 2096 84.29 2097 84.403 2098 84.517 2099 84.63