Year Total 1800 5.4 1801 5.395 1802 5.39 1803 5.385 1804 5.38 1805 5.375 1806 5.371 1807 5.366 1808 5.361 1809 5.356 1810 5.351 1811 5.346 1812 5.341 1813 5.336 1814 5.331 1815 5.327 1816 5.322 1817 5.317 1818 5.335 1819 5.353 1820 5.371 1821 5.349 1822 5.327 1823 5.306 1824 5.284 1825 5.263 1826 5.166 1827 5.069 1828 4.972 1829 4.875 1830 4.778 1831 4.803 1832 4.827 1833 4.851 1834 4.875 1835 4.899 1836 4.899 1837 4.899 1838 4.899 1839 4.899 1840 4.899 1841 4.924 1842 4.948 1843 4.972 1844 4.996 1845 5.021 1846 5.018 1847 5.015 1848 5.013 1849 5.01 1850 5.007 1851 4.873 1852 4.738 1853 4.603 1854 4.469 1855 4.334 1856 4.447 1857 4.56 1858 4.673 1859 4.786 1860 4.899 1861 4.932 1862 4.964 1863 4.996 1864 5.029 1865 5.061 1866 5.085 1867 5.109 1868 5.134 1869 5.158 1870 5.182 1871 5.239 1872 5.295 1873 5.352 1874 5.408 1875 5.465 1876 5.384 1877 5.303 1878 5.222 1879 5.142 1880 5.061 1881 5.137 1882 5.214 1883 5.29 1884 5.276 1885 5.262 1886 5.248 1887 5.234 1888 5.22 1889 5.208 1890 5.196 1891 5.184 1892 5.172 1893 5.16 1894 5.136 1895 5.112 1896 5.088 1897 5.064 1898 5.04 1899 4.986 1900 4.932 1901 4.878 1902 4.824 1903 4.77 1904 4.684 1905 4.598 1906 4.512 1907 4.426 1908 4.34 1909 4.176 1910 4.012 1911 3.848 1912 3.684 1913 3.52 1914 3.268 1915 3.016 1916 2.764 1917 2.512 1918 2.26 1919 2.332 1920 2.404 1921 2.476 1922 2.548 1923 2.62 1924 2.415 1925 2.21 1926 2.1 1927 1.98 1928 1.99 1929 1.93 1930 1.88 1931 1.71 1932 1.62 1933 1.58 1934 1.93 1935 2.03 1936 2.07 1937 2.09 1938 2.25 1939 2.39 1940 2.4 1941 2.25 1942 1.83 1943 2 1944 1.89 1945 1.53 1946 2 1947 2.03 1948 2.09 1949 2.15 1950 2.07 1951 2.083 1952 2.111 1953 2.141 1954 2.174 1955 2.209 1956 2.247 1957 2.286 1958 2.327 1959 2.368 1960 2.407 1961 2.442 1962 2.471 1963 2.489 1964 2.494 1965 2.479 1966 2.438 1967 2.37 1968 2.278 1969 2.165 1970 2.042 1971 1.917 1972 1.8 1973 1.7 1974 1.62 1975 1.563 1976 1.527 1977 1.504 1978 1.489 1979 1.479 1980 1.472 1981 1.467 1982 1.463 1983 1.46 1984 1.457 1985 1.452 1986 1.441 1987 1.426 1988 1.406 1989 1.383 1990 1.359 1991 1.337 1992 1.321 1993 1.311 1994 1.309 1995 1.313 1996 1.322 1997 1.331 1998 1.34 1999 1.347 2000 1.35 2001 1.352 2002 1.352 2003 1.351 2004 1.352 2005 1.353 2006 1.356 2007 1.361 2008 1.368 2009 1.376 2010 1.386 2011 1.397 2012 1.408 2013 1.419 2014 1.429 2015 1.439 2016 1.449 2017 1.458 2018 1.466 2019 1.475 2020 1.483 2021 1.491 2022 1.498 2023 1.506 2024 1.513 2030 1.553 2040 1.607 2050 1.651 2070 1.711 2080 1.734 2099 1.766