Year Total 1800 5.97 1801 5.967 1802 5.963 1803 5.96 1804 5.956 1805 5.953 1806 5.95 1807 5.946 1808 5.943 1809 5.939 1810 5.936 1811 5.933 1812 5.929 1813 5.926 1814 5.922 1815 5.919 1816 5.916 1817 5.912 1818 5.909 1819 5.905 1820 5.902 1821 5.899 1822 5.895 1823 5.892 1824 5.888 1825 5.885 1826 5.882 1827 5.878 1828 5.875 1829 5.871 1830 5.868 1831 5.865 1832 5.861 1833 5.858 1834 5.854 1835 5.851 1836 5.848 1837 5.844 1838 5.841 1839 5.837 1840 5.834 1841 5.831 1842 5.827 1843 5.824 1844 5.82 1845 5.817 1846 5.814 1847 5.81 1848 5.807 1849 5.803 1850 5.8 1851 5.799 1852 5.798 1853 5.796 1854 5.795 1855 5.794 1856 5.793 1857 5.792 1858 5.79 1859 5.789 1860 5.788 1861 5.787 1862 5.786 1863 5.785 1864 5.783 1865 5.782 1866 5.781 1867 5.78 1868 5.779 1869 5.777 1870 5.776 1871 5.775 1872 5.774 1873 5.773 1874 5.771 1875 5.77 1876 5.769 1877 5.768 1878 5.767 1879 5.766 1880 5.764 1881 5.763 1882 5.762 1883 5.708 1884 5.213 1885 5.454 1886 5.561 1887 5.641 1888 5.628 1889 5.574 1890 5.454 1891 5.44 1892 5.306 1893 5.038 1894 5.105 1895 5.253 1896 5.065 1897 4.301 1898 4.502 1899 4.596 1900 4.502 1901 4.409 1902 4.315 1903 4.342 1904 4.368 1905 4.395 1906 4.422 1907 4.449 1908 4.427 1909 4.406 1910 4.384 1911 4.363 1912 4.342 1913 4.221 1914 4.1 1915 3.98 1916 3.859 1917 3.739 1918 3.688 1919 3.637 1920 3.586 1921 3.535 1922 3.484 1923 3.455 1924 3.425 1925 3.396 1926 3.366 1927 3.337 1928 3.267 1929 3.197 1930 3.128 1931 3.058 1932 2.988 1933 2.927 1934 2.865 1935 2.803 1936 2.742 1937 2.68 1938 2.68 1939 2.68 1940 2.68 1941 2.68 1942 2.68 1943 2.682 1944 2.683 1945 2.684 1946 2.686 1947 2.688 1948 2.689 1949 2.691 1950 2.692 1951 2.701 1952 2.72 1953 2.74 1954 2.761 1955 2.783 1956 2.805 1957 2.828 1958 2.849 1959 2.868 1960 2.881 1961 2.887 1962 2.885 1963 2.874 1964 2.858 1965 2.841 1966 2.831 1967 2.831 1968 2.844 1969 2.869 1970 2.902 1971 2.938 1972 2.969 1973 2.988 1974 2.993 1975 2.981 1976 2.951 1977 2.905 1978 2.849 1979 2.787 1980 2.724 1981 2.665 1982 2.614 1983 2.574 1984 2.546 1985 2.53 1986 2.523 1987 2.523 1988 2.524 1989 2.523 1990 2.518 1991 2.506 1992 2.487 1993 2.463 1994 2.432 1995 2.398 1996 2.362 1997 2.327 1998 2.295 1999 2.267 2000 2.243 2001 2.223 2002 2.205 2003 2.188 2004 2.171 2005 2.155 2006 2.138 2007 2.122 2008 2.107 2009 2.093 2010 2.08 2011 2.068 2012 2.056 2013 2.046 2014 2.036 2015 2.026 2016 2.017 2017 2.008 2018 1.999 2019 1.991 2020 1.983 2021 1.975 2022 1.967 2023 1.959 2024 1.952 2030 1.914 2040 1.876 2050 1.86 2070 1.856 2080 1.861 2099 1.874