Year Total 1800 6.59 1801 6.59 1802 6.59 1803 6.59 1804 6.59 1805 6.59 1806 6.59 1807 6.59 1808 6.59 1809 6.59 1810 6.59 1811 6.59 1812 6.59 1813 6.59 1814 6.59 1815 6.59 1816 6.59 1817 6.59 1818 6.59 1819 6.59 1820 6.59 1821 6.59 1822 6.59 1823 6.59 1824 6.59 1825 6.59 1826 6.59 1827 6.59 1828 6.59 1829 6.59 1830 6.59 1831 6.59 1832 6.59 1833 6.59 1834 6.59 1835 6.59 1836 6.59 1837 6.59 1838 6.59 1839 6.59 1840 6.59 1841 6.59 1842 6.59 1843 6.59 1844 6.59 1845 6.59 1846 6.59 1847 6.59 1848 6.59 1849 6.59 1850 6.59 1851 6.59 1852 6.59 1853 6.59 1854 6.59 1855 6.59 1856 6.59 1857 6.59 1858 6.59 1859 6.59 1860 6.59 1861 6.59 1862 6.59 1863 6.59 1864 6.59 1865 6.59 1866 6.59 1867 6.59 1868 6.59 1869 6.59 1870 6.59 1871 6.59 1872 6.59 1873 6.59 1874 6.59 1875 6.59 1876 6.59 1877 6.59 1878 6.59 1879 6.59 1880 6.59 1881 6.59 1882 6.59 1883 6.59 1884 6.59 1885 6.59 1886 6.59 1887 6.59 1888 6.59 1889 6.59 1890 6.59 1891 6.59 1892 6.59 1893 6.59 1894 6.59 1895 6.59 1896 6.59 1897 6.59 1898 6.59 1899 6.59 1900 6.59 1901 6.59 1902 6.59 1903 6.59 1904 6.59 1905 6.59 1906 6.59 1907 6.59 1908 6.59 1909 6.59 1910 6.59 1911 6.59 1912 6.59 1913 6.59 1914 6.59 1915 6.59 1916 6.59 1917 6.59 1918 6.59 1919 6.59 1920 6.59 1921 6.59 1922 6.59 1923 6.59 1924 6.59 1925 6.59 1926 6.59 1927 6.591 1928 6.591 1929 6.592 1930 6.592 1931 6.592 1932 6.593 1933 6.593 1934 6.594 1935 6.594 1936 6.594 1937 6.595 1938 6.595 1939 6.596 1940 6.596 1941 6.596 1942 6.597 1943 6.597 1944 6.598 1945 6.598 1946 6.598 1947 6.599 1948 6.599 1949 6.6 1950 6.6 1951 6.6 1952 6.6 1953 6.6 1954 6.6 1955 6.6 1956 6.6 1957 6.6 1958 6.6 1959 6.6 1960 6.6 1961 6.6 1962 6.6 1963 6.6 1964 6.6 1965 6.6 1966 6.6 1967 6.6 1968 6.6 1969 6.6 1970 6.601 1971 6.602 1972 6.605 1973 6.608 1974 6.611 1975 6.612 1976 6.608 1977 6.599 1978 6.583 1979 6.561 1980 6.535 1981 6.508 1982 6.483 1983 6.46 1984 6.436 1985 6.407 1986 6.367 1987 6.31 1988 6.234 1989 6.138 1990 6.024 1991 5.899 1992 5.767 1993 5.634 1994 5.499 1995 5.359 1996 5.208 1997 5.042 1998 4.861 1999 4.669 2000 4.474 2001 4.29 2002 4.125 2003 3.986 2004 3.873 2005 3.785 2006 3.713 2007 3.648 2008 3.581 2009 3.509 2010 3.43 2011 3.347 2012 3.264 2013 3.185 2014 3.11 2015 3.041 2016 2.978 2017 2.919 2018 2.863 2019 2.81 2020 2.76 2021 2.713 2022 2.668 2023 2.625 2024 2.584 2030 2.375 2040 2.122 2050 1.955 2070 1.818 2080 1.806 2099 1.821