Year Total 1800 5.91 1801 5.91 1802 5.91 1803 5.91 1804 5.91 1805 5.91 1806 5.91 1807 5.91 1808 5.91 1809 5.91 1810 5.91 1811 5.91 1812 5.91 1813 5.91 1814 5.91 1815 5.91 1816 5.91 1817 5.91 1818 5.91 1819 5.91 1820 5.91 1821 5.91 1822 5.91 1823 5.91 1824 5.91 1825 5.91 1826 5.91 1827 5.91 1828 5.91 1829 5.91 1830 5.91 1831 5.91 1832 5.91 1833 5.91 1834 5.91 1835 5.91 1836 5.91 1837 5.91 1838 5.91 1839 5.91 1840 5.91 1841 5.91 1842 5.91 1843 5.91 1844 5.91 1845 5.91 1846 5.91 1847 5.91 1848 5.91 1849 5.91 1850 5.91 1851 5.867 1852 5.825 1853 5.782 1854 5.74 1855 5.697 1856 5.655 1857 5.612 1858 5.57 1859 5.527 1860 5.485 1861 5.442 1862 5.4 1863 5.396 1864 5.392 1865 5.388 1866 5.383 1867 5.379 1868 5.375 1869 5.371 1870 5.367 1871 5.362 1872 5.358 1873 5.354 1874 5.35 1875 5.346 1876 5.342 1877 5.338 1878 5.333 1879 5.329 1880 5.325 1881 5.321 1882 5.317 1883 5.313 1884 5.308 1885 5.304 1886 5.3 1887 5.296 1888 5.292 1889 5.288 1890 5.283 1891 5.279 1892 5.275 1893 5.271 1894 5.267 1895 5.263 1896 5.258 1897 5.254 1898 5.25 1899 5.246 1900 5.242 1901 5.238 1902 5.233 1903 5.229 1904 5.225 1905 5.221 1906 5.217 1907 5.213 1908 5.208 1909 5.204 1910 5.2 1911 5.197 1912 5.193 1913 5.19 1914 5.186 1915 5.183 1916 5.179 1917 5.176 1918 5.172 1919 5.169 1920 5.165 1921 5.162 1922 5.159 1923 5.155 1924 5.152 1925 5.148 1926 5.145 1927 5.141 1928 5.138 1929 5.134 1930 5.131 1931 5.128 1932 5.124 1933 5.121 1934 5.117 1935 5.114 1936 5.11 1937 5.107 1938 5.103 1939 5.1 1940 5.096 1941 5.093 1942 5.09 1943 5.086 1944 5.083 1945 5.079 1946 5.076 1947 5.072 1948 5.069 1949 5.065 1950 5.062 1951 4.999 1952 4.875 1953 4.757 1954 4.644 1955 4.537 1956 4.434 1957 4.336 1958 4.241 1959 4.147 1960 4.052 1961 3.954 1962 3.849 1963 3.737 1964 3.619 1965 3.495 1966 3.367 1967 3.239 1968 3.114 1969 2.994 1970 2.881 1971 2.775 1972 2.675 1973 2.581 1974 2.493 1975 2.412 1976 2.336 1977 2.267 1978 2.202 1979 2.144 1980 2.092 1981 2.05 1982 2.017 1983 1.992 1984 1.973 1985 1.953 1986 1.925 1987 1.887 1988 1.836 1989 1.775 1990 1.708 1991 1.645 1992 1.594 1993 1.558 1994 1.538 1995 1.528 1996 1.519 1997 1.503 1998 1.474 1999 1.433 2000 1.381 2001 1.325 2002 1.275 2003 1.236 2004 1.21 2005 1.199 2006 1.199 2007 1.207 2008 1.218 2009 1.23 2010 1.242 2011 1.255 2012 1.268 2013 1.283 2014 1.299 2015 1.315 2016 1.331 2017 1.348 2018 1.364 2019 1.38 2020 1.395 2021 1.409 2022 1.423 2023 1.436 2024 1.449 2030 1.519 2040 1.612 2050 1.681 2070 1.768 2080 1.798 2099 1.835