Year Total
1800 5.13
1801 5.13
1802 5.13
1803 5.13
1804 5.13
1805 5.13
1806 5.13
1807 5.13
1808 5.13
1809 5.13
1810 5.13
1811 5.13
1812 5.13
1813 5.13
1814 5.13
1815 5.13
1816 5.13
1817 5.13
1818 5.13
1819 5.13
1820 5.13
1821 5.13
1822 5.13
1823 5.13
1824 5.13
1825 5.13
1826 5.13
1827 5.13
1828 5.13
1829 5.13
1830 5.13
1831 5.13
1832 5.13
1833 5.13
1834 5.13
1835 5.13
1836 5.13
1837 5.13
1838 5.13
1839 5.13
1840 5.13
1841 5.13
1842 5.13
1843 5.13
1844 5.13
1845 5.13
1846 5.13
1847 5.13
1848 5.13
1849 5.13
1850 5.13
1851 5.071
1852 5.012
1853 4.953
1854 4.894
1855 4.835
1856 4.776
1857 4.717
1858 4.657
1859 4.75
1860 4.856
1861 5.16
1862 5.094
1863 5.001
1864 5.187
1865 5.107
1866 5.068
1867 5.094
1868 4.724
1869 4.896
1870 4.843
1871 4.834
1872 4.826
1873 4.818
1874 4.81
1875 4.801
1876 4.793
1877 4.785
1878 4.777
1879 4.737
1880 4.697
1881 4.909
1882 4.79
1883 4.71
1884 4.856
1885 4.803
1886 4.856
1887 4.777
1888 4.816
1889 4.816
1890 4.552
1891 4.671
1892 4.71
1893 4.71
1894 4.605
1895 4.631
1896 4.75
1897 4.512
1898 4.406
1899 4.525
1900 4.485
1901 4.71
1902 4.697
1903 4.685
1904 4.673
1905 4.66
1906 4.614
1907 4.568
1908 4.522
1909 4.476
1910 4.43
1911 4.388
1912 4.346
1913 4.304
1914 4.262
1915 4.22
1916 4.204
1917 4.188
1918 4.172
1919 4.156
1920 4.14
1921 4.08
1922 4.02
1923 4.02
1924 3.92
1925 3.82
1926 3.87
1927 3.7
1928 3.8
1929 3.69
1930 3.68
1931 3.58
1932 3.64
1933 3.59
1934 3.38
1935 3.31
1936 3.18
1937 2.89
1938 2.56
1939 2.12
1940 3.09
1941 2.47
1942 2.53
1943 2.88
1944 2.84
1945 2.91
1946 2.7
1947 2.67
1948 2.88
1949 2.68
1950 2.449
1951 2.47
1952 2.512
1953 2.551
1954 2.589
1955 2.624
1956 2.657
1957 2.688
1958 2.717
1959 2.743
1960 2.766
1961 2.786
1962 2.802
1963 2.816
1964 2.826
1965 2.834
1966 2.842
1967 2.851
1968 2.86
1969 2.868
1970 2.872
1971 2.87
1972 2.86
1973 2.839
1974 2.804
1975 2.751
1976 2.679
1977 2.587
1978 2.478
1979 2.355
1980 2.224
1981 2.091
1982 1.96
1983 1.838
1984 1.728
1985 1.633
1986 1.554
1987 1.487
1988 1.431
1989 1.383
1990 1.343
1991 1.309
1992 1.28
1993 1.254
1994 1.231
1995 1.213
1996 1.2
1997 1.195
1998 1.197
1999 1.207
2000 1.224
2001 1.246
2002 1.271
2003 1.298
2004 1.325
2005 1.35
2006 1.375
2007 1.397
2008 1.419
2009 1.439
2010 1.457
2011 1.474
2012 1.49
2013 1.505
2014 1.52
2015 1.534
2016 1.548
2017 1.562
2018 1.574
2019 1.586
2020 1.598
2021 1.609
2022 1.62
2023 1.63
2024 1.64
2030 1.691
2040 1.756
2050 1.797
2070 1.848
2080 1.865
2099 1.884