Year Total
1800 5.49
1801 5.49
1802 5.49
1803 5.49
1804 5.49
1805 5.49
1806 5.49
1807 5.49
1808 5.49
1809 5.49
1810 5.49
1811 5.49
1812 5.49
1813 5.49
1814 5.49
1815 5.49
1816 5.49
1817 5.49
1818 5.49
1819 5.49
1820 5.49
1821 5.49
1822 5.49
1823 5.49
1824 5.49
1825 5.49
1826 5.49
1827 5.49
1828 5.49
1829 5.49
1830 5.49
1831 5.49
1832 5.49
1833 5.49
1834 5.49
1835 5.49
1836 5.49
1837 5.49
1838 5.49
1839 5.49
1840 5.49
1841 5.49
1842 5.49
1843 5.49
1844 5.49
1845 5.49
1846 5.49
1847 5.49
1848 5.49
1849 5.49
1850 5.49
1851 5.49
1852 5.49
1853 5.49
1854 5.49
1855 5.49
1856 5.49
1857 5.49
1858 5.49
1859 5.49
1860 5.49
1861 5.49
1862 5.49
1863 5.49
1864 5.49
1865 5.49
1866 5.49
1867 5.49
1868 5.49
1869 5.49
1870 5.49
1871 5.49
1872 5.49
1873 5.49
1874 5.49
1875 5.49
1876 5.49
1877 5.49
1878 5.49
1879 5.49
1880 5.49
1881 5.477
1882 5.464
1883 5.45
1884 5.437
1885 5.424
1886 5.411
1887 5.398
1888 5.384
1889 5.371
1890 5.358
1891 5.345
1892 5.332
1893 5.318
1894 5.305
1895 5.292
1896 5.279
1897 5.266
1898 5.252
1899 5.239
1900 5.226
1901 5.28
1902 5.333
1903 5.387
1904 5.44
1905 5.494
1906 5.363
1907 5.231
1908 5.1
1909 4.969
1910 4.837
1911 4.687
1912 4.537
1913 4.387
1914 4.237
1915 4.087
1916 4.194
1917 4.301
1918 4.409
1919 4.516
1920 4.623
1921 4.591
1922 4.559
1923 4.527
1924 4.494
1925 4.462
1926 4.486
1927 4.51
1928 4.535
1929 4.559
1930 4.583
1931 4.577
1932 4.572
1933 4.567
1934 4.561
1935 4.556
1936 4.516
1937 4.476
1938 4.435
1939 4.395
1940 4.355
1941 4.513
1942 4.671
1943 4.829
1944 4.987
1945 5.146
1946 5.132
1947 5.119
1948 4.844
1949 4.569
1950 4.211
1951 4.197
1952 4.163
1953 4.122
1954 4.071
1955 4.011
1956 3.941
1957 3.861
1958 3.767
1959 3.657
1960 3.527
1961 3.375
1962 3.2
1963 3.005
1964 2.798
1965 2.592
1966 2.401
1967 2.238
1968 2.11
1969 2.023
1970 1.975
1971 1.963
1972 1.975
1973 1.999
1974 2.028
1975 2.056
1976 2.077
1977 2.09
1978 2.097
1979 2.095
1980 2.087
1981 2.075
1982 2.064
1983 2.057
1984 2.054
1985 2.055
1986 2.059
1987 2.064
1988 2.065
1989 2.062
1990 2.054
1991 2.04
1992 2.022
1993 1.998
1994 1.968
1995 1.93
1996 1.881
1997 1.819
1998 1.748
1999 1.671
2000 1.593
2001 1.521
2002 1.461
2003 1.417
2004 1.388
2005 1.375
2006 1.373
2007 1.375
2008 1.377
2009 1.377
2010 1.373
2011 1.367
2012 1.361
2013 1.356
2014 1.354
2015 1.354
2016 1.358
2017 1.363
2018 1.371
2019 1.38
2020 1.39
2021 1.401
2022 1.412
2023 1.423
2024 1.434
2030 1.495
2040 1.583
2050 1.657
2070 1.754
2080 1.787
2099 1.829