Year Total
1800 4.14
1801 4.14
1802 4.14
1803 4.14
1804 4.14
1805 4.14
1806 4.14
1807 4.14
1808 4.14
1809 4.14
1810 4.14
1811 4.14
1812 4.14
1813 4.14
1814 4.14
1815 4.14
1816 4.14
1817 4.14
1818 4.14
1819 4.14
1820 4.14
1821 4.14
1822 4.14
1823 4.14
1824 4.14
1825 4.14
1826 4.14
1827 4.14
1828 4.14
1829 4.14
1830 4.14
1831 4.14
1832 4.14
1833 4.14
1834 4.14
1835 4.14
1836 4.14
1837 4.14
1838 4.14
1839 4.14
1840 4.14
1841 4.14
1842 4.14
1843 4.14
1844 4.14
1845 4.14
1846 4.14
1847 4.14
1848 4.14
1849 4.14
1850 4.14
1851 4.016
1852 3.891
1853 3.741
1854 3.646
1855 3.441
1856 3.825
1857 3.845
1858 4.049
1859 4.271
1860 4.193
1861 4.138
1862 4.176
1863 4.32
1864 4.323
1865 4.26
1866 4.33
1867 4.16
1868 4.043
1869 4.141
1870 3.987
1871 3.99
1872 3.993
1873 3.98
1874 4.074
1875 4.261
1876 4.395
1877 4.288
1878 4.194
1879 4.087
1880 3.966
1881 3.993
1882 3.873
1883 3.819
1884 3.792
1885 3.712
1886 3.725
1887 3.739
1888 3.712
1889 3.698
1890 3.564
1891 3.779
1892 3.712
1893 3.739
1894 3.658
1895 3.658
1896 3.765
1897 3.792
1898 3.819
1899 3.886
1900 3.832
1901 3.886
1902 3.819
1903 3.672
1904 3.658
1905 3.605
1906 3.605
1907 3.511
1908 3.538
1909 3.417
1910 3.098
1911 3.068
1912 3.039
1913 3.01
1914 3.002
1915 2.613
1916 2.533
1917 2.479
1918 2.47
1919 2.492
1920 2.339
1921 2.369
1922 2.4
1923 2.43
1924 2.364
1925 2.298
1926 2.232
1927 2.166
1928 2.1
1929 2.045
1930 1.99
1931 1.967
1932 1.943
1933 1.894
1934 1.875
1935 1.843
1936 1.804
1937 1.737
1938 1.78
1939 1.793
1940 1.816
1941 2.051
1942 2.266
1943 2.404
1944 2.499
1945 2.6
1946 2.621
1947 2.562
1948 2.543
1949 2.443
1950 2.325
1951 2.316
1952 2.303
1953 2.301
1954 2.309
1955 2.328
1956 2.356
1957 2.392
1958 2.434
1959 2.478
1960 2.52
1961 2.554
1962 2.575
1963 2.579
1964 2.564
1965 2.528
1966 2.471
1967 2.397
1968 2.312
1969 2.218
1970 2.121
1971 2.021
1972 1.923
1973 1.829
1974 1.743
1975 1.669
1976 1.61
1977 1.565
1978 1.535
1979 1.518
1980 1.511
1981 1.513
1982 1.52
1983 1.528
1984 1.535
1985 1.541
1986 1.543
1987 1.545
1988 1.546
1989 1.547
1990 1.546
1991 1.544
1992 1.539
1993 1.533
1994 1.525
1995 1.515
1996 1.502
1997 1.487
1998 1.47
1999 1.453
2000 1.437
2001 1.425
2002 1.418
2003 1.416
2004 1.42
2005 1.429
2006 1.442
2007 1.457
2008 1.472
2009 1.487
2010 1.5
2011 1.511
2012 1.522
2013 1.533
2014 1.543
2015 1.553
2016 1.563
2017 1.572
2018 1.582
2019 1.59
2020 1.599
2021 1.607
2022 1.615
2023 1.623
2024 1.63
2030 1.671
2040 1.726
2050 1.766
2070 1.819
2080 1.836
2099 1.861