Year Total 1800 6.43 1801 6.432 1802 6.433 1803 6.435 1804 6.436 1805 6.438 1806 6.439 1807 6.441 1808 6.442 1809 6.444 1810 6.445 1811 6.447 1812 6.448 1813 6.45 1814 6.451 1815 6.453 1816 6.454 1817 6.456 1818 6.457 1819 6.459 1820 6.46 1821 6.462 1822 6.463 1823 6.465 1824 6.466 1825 6.468 1826 6.47 1827 6.471 1828 6.473 1829 6.474 1830 6.476 1831 6.477 1832 6.479 1833 6.48 1834 6.482 1835 6.483 1836 6.485 1837 6.486 1838 6.488 1839 6.489 1840 6.491 1841 6.492 1842 6.494 1843 6.495 1844 6.497 1845 6.498 1846 6.5 1847 6.501 1848 6.503 1849 6.504 1850 6.506 1851 6.508 1852 6.509 1853 6.511 1854 6.512 1855 6.514 1856 6.515 1857 6.517 1858 6.518 1859 6.52 1860 6.521 1861 6.523 1862 6.524 1863 6.526 1864 6.527 1865 6.529 1866 6.53 1867 6.532 1868 6.533 1869 6.535 1870 6.536 1871 6.538 1872 6.539 1873 6.541 1874 6.542 1875 6.544 1876 6.546 1877 6.547 1878 6.549 1879 6.55 1880 6.552 1881 6.553 1882 6.555 1883 6.556 1884 6.558 1885 6.559 1886 6.561 1887 6.562 1888 6.564 1889 6.565 1890 6.567 1891 6.568 1892 6.57 1893 6.571 1894 6.573 1895 6.574 1896 6.576 1897 6.577 1898 6.579 1899 6.58 1900 6.582 1901 6.584 1902 6.585 1903 6.587 1904 6.588 1905 6.59 1906 6.591 1907 6.593 1908 6.594 1909 6.596 1910 6.597 1911 6.599 1912 6.6 1913 6.602 1914 6.603 1915 6.605 1916 6.606 1917 6.608 1918 6.609 1919 6.611 1920 6.612 1921 6.614 1922 6.615 1923 6.617 1924 6.618 1925 6.62 1926 6.615 1927 6.61 1928 6.605 1929 6.6 1930 6.595 1931 6.59 1932 6.586 1933 6.581 1934 6.576 1935 6.571 1936 6.566 1937 6.561 1938 6.556 1939 6.551 1940 6.546 1941 6.541 1942 6.536 1943 6.531 1944 6.527 1945 6.522 1946 6.517 1947 6.512 1948 6.507 1949 6.502 1950 6.497 1951 6.513 1952 6.546 1953 6.582 1954 6.621 1955 6.662 1956 6.706 1957 6.751 1958 6.797 1959 6.842 1960 6.885 1961 6.922 1962 6.953 1963 6.976 1964 6.989 1965 6.993 1966 6.99 1967 6.982 1968 6.97 1969 6.954 1970 6.935 1971 6.913 1972 6.887 1973 6.855 1974 6.818 1975 6.771 1976 6.714 1977 6.645 1978 6.564 1979 6.473 1980 6.375 1981 6.274 1982 6.174 1983 6.075 1984 5.979 1985 5.883 1986 5.784 1987 5.68 1988 5.565 1989 5.441 1990 5.307 1991 5.164 1992 5.016 1993 4.863 1994 4.708 1995 4.55 1996 4.388 1997 4.221 1998 4.05 1999 3.876 2000 3.701 2001 3.527 2002 3.357 2003 3.192 2004 3.037 2005 2.895 2006 2.77 2007 2.66 2008 2.567 2009 2.49 2010 2.427 2011 2.375 2012 2.331 2013 2.292 2014 2.255 2015 2.22 2016 2.185 2017 2.152 2018 2.122 2019 2.093 2020 2.066 2021 2.04 2022 2.016 2023 1.993 2024 1.971 2030 1.862 2040 1.759 2050 1.726 2070 1.754 2080 1.78 2099 1.821