Year Total 1800 6.37 1801 6.37 1802 6.37 1803 6.37 1804 6.37 1805 6.37 1806 6.37 1807 6.37 1808 6.37 1809 6.37 1810 6.37 1811 6.37 1812 6.37 1813 6.37 1814 6.37 1815 6.37 1816 6.37 1817 6.37 1818 6.37 1819 6.37 1820 6.37 1821 6.37 1822 6.37 1823 6.37 1824 6.37 1825 6.37 1826 6.37 1827 6.37 1828 6.37 1829 6.37 1830 6.37 1831 6.37 1832 6.37 1833 6.37 1834 6.37 1835 6.37 1836 6.37 1837 6.37 1838 6.37 1839 6.37 1840 6.37 1841 6.37 1842 6.37 1843 6.37 1844 6.37 1845 6.37 1846 6.37 1847 6.37 1848 6.37 1849 6.37 1850 6.37 1851 6.37 1852 6.37 1853 6.37 1854 6.37 1855 6.37 1856 6.37 1857 6.37 1858 6.37 1859 6.37 1860 6.37 1861 6.37 1862 6.37 1863 6.37 1864 6.37 1865 6.37 1866 6.37 1867 6.37 1868 6.37 1869 6.37 1870 6.37 1871 6.37 1872 6.37 1873 6.37 1874 6.37 1875 6.37 1876 6.37 1877 6.37 1878 6.37 1879 6.37 1880 6.37 1881 6.37 1882 6.37 1883 6.37 1884 6.37 1885 6.37 1886 6.37 1887 6.37 1888 6.37 1889 6.37 1890 6.37 1891 6.37 1892 6.37 1893 6.37 1894 6.37 1895 6.37 1896 6.37 1897 6.37 1898 6.37 1899 6.37 1900 6.37 1901 6.37 1902 6.37 1903 6.37 1904 6.37 1905 6.37 1906 6.37 1907 6.37 1908 6.37 1909 6.37 1910 6.37 1911 6.37 1912 6.37 1913 6.37 1914 6.37 1915 6.37 1916 6.37 1917 6.37 1918 6.37 1919 6.37 1920 6.37 1921 6.37 1922 6.37 1923 6.37 1924 6.37 1925 6.37 1926 6.333 1927 6.296 1928 6.259 1929 6.222 1930 6.185 1931 6.148 1932 6.111 1933 6.074 1934 6.037 1935 6 1936 5.963 1937 5.926 1938 5.888 1939 5.851 1940 5.814 1941 5.777 1942 5.74 1943 5.703 1944 5.666 1945 5.629 1946 5.592 1947 5.555 1948 5.518 1949 5.481 1950 5.444 1951 5.458 1952 5.493 1953 5.541 1954 5.603 1955 5.678 1956 5.762 1957 5.851 1958 5.939 1959 6.011 1960 6.052 1961 6.048 1962 5.984 1963 5.857 1964 5.67 1965 5.439 1966 5.187 1967 4.939 1968 4.716 1969 4.526 1970 4.372 1971 4.248 1972 4.137 1973 4.028 1974 3.917 1975 3.801 1976 3.681 1977 3.561 1978 3.447 1979 3.34 1980 3.248 1981 3.177 1982 3.128 1983 3.1 1984 3.092 1985 3.095 1986 3.099 1987 3.097 1988 3.082 1989 3.053 1990 3.013 1991 2.969 1992 2.929 1993 2.899 1994 2.881 1995 2.872 1996 2.87 1997 2.867 1998 2.86 1999 2.846 2000 2.824 2001 2.794 2002 2.759 2003 2.72 2004 2.679 2005 2.638 2006 2.599 2007 2.562 2008 2.529 2009 2.499 2010 2.472 2011 2.448 2012 2.426 2013 2.405 2014 2.383 2015 2.362 2016 2.341 2017 2.32 2018 2.3 2019 2.281 2020 2.262 2021 2.245 2022 2.227 2023 2.21 2024 2.193 2030 2.101 2040 1.992 2050 1.925 2070 1.875 2080 1.87 2099 1.875