Year Total 1800 5.71 1801 5.71 1802 5.71 1803 5.71 1804 5.71 1805 5.71 1806 5.71 1807 5.71 1808 5.71 1809 5.71 1810 5.71 1811 5.71 1812 5.71 1813 5.71 1814 5.71 1815 5.71 1816 5.71 1817 5.71 1818 5.71 1819 5.71 1820 5.71 1821 5.71 1822 5.71 1823 5.71 1824 5.71 1825 5.71 1826 5.71 1827 5.71 1828 5.71 1829 5.71 1830 5.71 1831 5.71 1832 5.71 1833 5.71 1834 5.71 1835 5.71 1836 5.71 1837 5.71 1838 5.71 1839 5.71 1840 5.71 1841 5.71 1842 5.71 1843 5.71 1844 5.71 1845 5.71 1846 5.71 1847 5.71 1848 5.71 1849 5.71 1850 5.71 1851 5.71 1852 5.71 1853 5.71 1854 5.71 1855 5.71 1856 5.71 1857 5.71 1858 5.71 1859 5.71 1860 5.71 1861 5.71 1862 5.71 1863 5.71 1864 5.71 1865 5.71 1866 5.71 1867 5.71 1868 5.71 1869 5.71 1870 5.71 1871 5.71 1872 5.71 1873 5.71 1874 5.71 1875 5.71 1876 5.71 1877 5.71 1878 5.71 1879 5.71 1880 5.71 1881 5.71 1882 5.71 1883 5.71 1884 5.71 1885 5.71 1886 5.71 1887 5.71 1888 5.71 1889 5.71 1890 5.71 1891 5.71 1892 5.71 1893 5.71 1894 5.71 1895 5.71 1896 5.71 1897 5.71 1898 5.71 1899 5.71 1900 5.71 1901 5.71 1902 5.71 1903 5.71 1904 5.71 1905 5.71 1906 5.71 1907 5.71 1908 5.71 1909 5.71 1910 5.71 1911 5.71 1912 5.71 1913 5.71 1914 5.71 1915 5.71 1916 5.71 1917 5.71 1918 5.71 1919 5.71 1920 5.71 1921 5.71 1922 5.71 1923 5.71 1924 5.71 1925 5.71 1926 5.71 1927 5.71 1928 5.71 1929 5.711 1930 5.711 1931 5.711 1932 5.711 1933 5.711 1934 5.711 1935 5.712 1936 5.712 1937 5.712 1938 5.712 1939 5.712 1940 5.712 1941 5.713 1942 5.713 1943 5.713 1944 5.713 1945 5.713 1946 5.713 1947 5.714 1948 5.714 1949 5.714 1950 5.714 1951 5.781 1952 5.912 1953 6.037 1954 6.156 1955 6.269 1956 6.375 1957 6.474 1958 6.564 1959 6.643 1960 6.707 1961 6.755 1962 6.783 1963 6.79 1964 6.777 1965 6.748 1966 6.707 1967 6.66 1968 6.608 1969 6.552 1970 6.492 1971 6.422 1972 6.338 1973 6.237 1974 6.119 1975 5.983 1976 5.829 1977 5.66 1978 5.482 1979 5.302 1980 5.127 1981 4.968 1982 4.829 1983 4.711 1984 4.616 1985 4.539 1986 4.474 1987 4.413 1988 4.346 1989 4.269 1990 4.176 1991 4.062 1992 3.93 1993 3.784 1994 3.627 1995 3.463 1996 3.298 1997 3.137 1998 2.988 1999 2.855 2000 2.742 2001 2.654 2002 2.588 2003 2.542 2004 2.512 2005 2.493 2006 2.482 2007 2.471 2008 2.457 2009 2.437 2010 2.41 2011 2.377 2012 2.343 2013 2.309 2014 2.277 2015 2.248 2016 2.22 2017 2.194 2018 2.17 2019 2.146 2020 2.123 2021 2.1 2022 2.079 2023 2.059 2024 2.04 2030 1.94 2040 1.832 2050 1.784 2070 1.781 2080 1.797 2099 1.829