Year Total
1800 6.48
1801 6.48
1802 6.48
1803 6.48
1804 6.48
1805 6.48
1806 6.48
1807 6.48
1808 6.48
1809 6.48
1810 6.48
1811 6.48
1812 6.48
1813 6.48
1814 6.48
1815 6.48
1816 6.48
1817 6.48
1818 6.48
1819 6.48
1820 6.48
1821 6.48
1822 6.48
1823 6.48
1824 6.48
1825 6.48
1826 6.48
1827 6.48
1828 6.48
1829 6.48
1830 6.48
1831 6.48
1832 6.48
1833 6.48
1834 6.48
1835 6.48
1836 6.48
1837 6.48
1838 6.48
1839 6.48
1840 6.48
1841 6.48
1842 6.48
1843 6.48
1844 6.48
1845 6.48
1846 6.48
1847 6.48
1848 6.48
1849 6.48
1850 6.48
1851 6.48
1852 6.48
1853 6.48
1854 6.48
1855 6.48
1856 6.48
1857 6.48
1858 6.48
1859 6.48
1860 6.48
1861 6.48
1862 6.48
1863 6.48
1864 6.48
1865 6.48
1866 6.48
1867 6.48
1868 6.48
1869 6.48
1870 6.48
1871 6.48
1872 6.48
1873 6.48
1874 6.48
1875 6.48
1876 6.48
1877 6.48
1878 6.48
1879 6.48
1880 6.48
1881 6.48
1882 6.48
1883 6.48
1884 6.48
1885 6.48
1886 6.48
1887 6.48
1888 6.48
1889 6.48
1890 6.48
1891 6.48
1892 6.48
1893 6.48
1894 6.48
1895 6.48
1896 6.48
1897 6.48
1898 6.48
1899 6.48
1900 6.48
1901 6.48
1902 6.48
1903 6.48
1904 6.48
1905 6.48
1906 6.48
1907 6.48
1908 6.48
1909 6.48
1910 6.48
1911 6.48
1912 6.48
1913 6.48
1914 6.48
1915 6.48
1916 6.48
1917 6.48
1918 6.48
1919 6.48
1920 6.48
1921 6.48
1922 6.48
1923 6.48
1924 6.48
1925 6.48
1926 6.48
1927 6.48
1928 6.48
1929 6.48
1930 6.48
1931 6.492
1932 6.504
1933 6.515
1934 6.527
1935 6.539
1936 6.551
1937 6.563
1938 6.574
1939 6.586
1940 6.598
1941 6.61
1942 6.622
1943 6.633
1944 6.645
1945 6.657
1946 6.669
1947 6.681
1948 6.692
1949 6.704
1950 6.716
1951 6.728
1952 6.748
1953 6.762
1954 6.769
1955 6.77
1956 6.765
1957 6.754
1958 6.738
1959 6.718
1960 6.696
1961 6.672
1962 6.648
1963 6.627
1964 6.607
1965 6.593
1966 6.586
1967 6.585
1968 6.587
1969 6.587
1970 6.578
1971 6.549
1972 6.496
1973 6.415
1974 6.31
1975 6.183
1976 6.043
1977 5.899
1978 5.761
1979 5.634
1980 5.521
1981 5.423
1982 5.337
1983 5.259
1984 5.189
1985 5.127
1986 5.074
1987 5.029
1988 4.989
1989 4.952
1990 4.913
1991 4.866
1992 4.81
1993 4.742
1994 4.663
1995 4.575
1996 4.482
1997 4.39
1998 4.302
1999 4.219
2000 4.14
2001 4.062
2002 3.982
2003 3.897
2004 3.809
2005 3.72
2006 3.633
2007 3.551
2008 3.477
2009 3.413
2010 3.357
2011 3.308
2012 3.264
2013 3.221
2014 3.18
2015 3.138
2016 3.097
2017 3.057
2018 3.017
2019 2.98
2020 2.943
2021 2.907
2022 2.873
2023 2.84
2024 2.808
2030 2.635
2040 2.406
2050 2.222
2070 1.983
2080 1.921
2099 1.869