Year Total
1800 5.9
1801 5.9
1802 5.9
1803 5.9
1804 5.9
1805 5.9
1806 5.9
1807 5.9
1808 5.9
1809 5.9
1810 5.9
1811 5.9
1812 5.9
1813 5.9
1814 5.9
1815 5.9
1816 5.9
1817 5.9
1818 5.9
1819 5.9
1820 5.9
1821 5.9
1822 5.9
1823 5.9
1824 5.9
1825 5.9
1826 5.9
1827 5.9
1828 5.9
1829 5.9
1830 5.9
1831 5.9
1832 5.9
1833 5.9
1834 5.9
1835 5.9
1836 5.9
1837 5.9
1838 5.9
1839 5.9
1840 5.9
1841 5.9
1842 5.9
1843 5.9
1844 5.9
1845 5.9
1846 5.9
1847 5.9
1848 5.9
1849 5.9
1850 5.9
1851 5.861
1852 5.821
1853 5.782
1854 5.742
1855 5.703
1856 5.663
1857 5.624
1858 5.585
1859 5.545
1860 5.506
1861 5.466
1862 5.427
1863 5.695
1864 5.963
1865 5.97
1866 5.976
1867 5.983
1868 5.99
1869 5.997
1870 6.003
1871 5.948
1872 5.893
1873 5.838
1874 5.783
1875 5.729
1876 5.674
1877 5.619
1878 5.564
1879 5.509
1880 5.454
1881 5.448
1882 5.443
1883 5.438
1884 5.432
1885 5.427
1886 5.422
1887 5.416
1888 5.411
1889 5.406
1890 5.4
1891 5.428
1892 5.456
1893 5.485
1894 5.513
1895 5.541
1896 5.569
1897 5.597
1898 5.625
1899 5.653
1900 5.682
1901 5.545
1902 5.408
1903 5.272
1904 5.135
1905 4.998
1906 5.044
1907 5.089
1908 5.135
1909 5.18
1910 5.226
1911 5.182
1912 5.139
1913 5.095
1914 5.052
1915 5.008
1916 4.965
1917 4.921
1918 4.878
1919 4.834
1920 4.79
1921 4.747
1922 4.703
1923 4.66
1924 4.616
1925 4.573
1926 4.529
1927 4.486
1928 4.442
1929 4.399
1930 4.355
1931 4.311
1932 4.268
1933 4.224
1934 4.181
1935 4.137
1936 4.094
1937 4.05
1938 4.007
1939 3.963
1940 3.92
1941 3.876
1942 3.832
1943 3.789
1944 3.745
1945 3.702
1946 3.658
1947 3.615
1948 3.571
1949 3.528
1950 3.484
1951 3.411
1952 3.272
1953 3.147
1954 3.035
1955 2.938
1956 2.853
1957 2.782
1958 2.723
1959 2.674
1960 2.634
1961 2.6
1962 2.57
1963 2.543
1964 2.517
1965 2.49
1966 2.464
1967 2.44
1968 2.418
1969 2.399
1970 2.384
1971 2.372
1972 2.366
1973 2.362
1974 2.362
1975 2.363
1976 2.365
1977 2.366
1978 2.364
1979 2.36
1980 2.353
1981 2.344
1982 2.334
1983 2.322
1984 2.309
1985 2.292
1986 2.269
1987 2.238
1988 2.2
1989 2.155
1990 2.105
1991 2.051
1992 1.996
1993 1.943
1994 1.893
1995 1.846
1996 1.803
1997 1.761
1998 1.721
1999 1.681
2000 1.642
2001 1.604
2002 1.568
2003 1.534
2004 1.501
2005 1.472
2006 1.446
2007 1.424
2008 1.406
2009 1.391
2010 1.38
2011 1.373
2012 1.368
2013 1.365
2014 1.364
2015 1.365
2016 1.368
2017 1.373
2018 1.379
2019 1.388
2020 1.398
2021 1.408
2022 1.419
2023 1.43
2024 1.441
2030 1.499
2040 1.585
2050 1.655
2070 1.754
2080 1.787
2099 1.829