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 5.707 1927 5.705 1928 5.702 1929 5.699 1930 5.697 1931 5.694 1932 5.691 1933 5.689 1934 5.686 1935 5.683 1936 5.681 1937 5.678 1938 5.675 1939 5.672 1940 5.67 1941 5.667 1942 5.664 1943 5.662 1944 5.659 1945 5.656 1946 5.654 1947 5.651 1948 5.648 1949 5.646 1950 5.643 1951 5.665 1952 5.705 1953 5.733 1954 5.749 1955 5.753 1956 5.746 1957 5.729 1958 5.7 1959 5.663 1960 5.617 1961 5.564 1962 5.504 1963 5.437 1964 5.363 1965 5.278 1966 5.181 1967 5.069 1968 4.939 1969 4.789 1970 4.613 1971 4.404 1972 4.165 1973 3.9 1974 3.619 1975 3.333 1976 3.059 1977 2.809 1978 2.593 1979 2.418 1980 2.287 1981 2.202 1982 2.15 1983 2.123 1984 2.113 1985 2.111 1986 2.111 1987 2.108 1988 2.099 1989 2.081 1990 2.054 1991 2.02 1992 1.986 1993 1.955 1994 1.93 1995 1.912 1996 1.905 1997 1.905 1998 1.912 1999 1.924 2000 1.939 2001 1.952 2002 1.962 2003 1.966 2004 1.964 2005 1.955 2006 1.941 2007 1.924 2008 1.906 2009 1.887 2010 1.87 2011 1.854 2012 1.84 2013 1.827 2014 1.815 2015 1.805 2016 1.797 2017 1.791 2018 1.785 2019 1.781 2020 1.778 2021 1.776 2022 1.775 2023 1.774 2024 1.774 2030 1.776 2040 1.789 2050 1.808 2070 1.841 2080 1.856 2099 1.878