Year Total
1800 6.45
1801 6.45
1802 6.45
1803 6.45
1804 6.45
1805 6.45
1806 6.45
1807 6.45
1808 6.45
1809 6.45
1810 6.45
1811 6.45
1812 6.45
1813 6.45
1814 6.45
1815 6.45
1816 6.45
1817 6.45
1818 6.45
1819 6.45
1820 6.45
1821 6.45
1822 6.45
1823 6.45
1824 6.45
1825 6.45
1826 6.45
1827 6.45
1828 6.45
1829 6.45
1830 6.45
1831 6.45
1832 6.45
1833 6.45
1834 6.45
1835 6.45
1836 6.45
1837 6.45
1838 6.45
1839 6.45
1840 6.45
1841 6.45
1842 6.45
1843 6.45
1844 6.45
1845 6.45
1846 6.45
1847 6.45
1848 6.45
1849 6.45
1850 6.45
1851 6.45
1852 6.45
1853 6.45
1854 6.45
1855 6.45
1856 6.45
1857 6.45
1858 6.45
1859 6.45
1860 6.45
1861 6.45
1862 6.45
1863 6.45
1864 6.45
1865 6.45
1866 6.45
1867 6.45
1868 6.45
1869 6.45
1870 6.45
1871 6.45
1872 6.45
1873 6.45
1874 6.45
1875 6.45
1876 6.45
1877 6.45
1878 6.45
1879 6.45
1880 6.45
1881 6.45
1882 6.45
1883 6.45
1884 6.45
1885 6.45
1886 6.45
1887 6.45
1888 6.45
1889 6.45
1890 6.45
1891 6.45
1892 6.45
1893 6.45
1894 6.45
1895 6.45
1896 6.45
1897 6.45
1898 6.45
1899 6.45
1900 6.45
1901 6.394
1902 6.339
1903 6.283
1904 6.227
1905 6.172
1906 6.116
1907 6.06
1908 6.144
1909 6.227
1910 6.311
1911 6.394
1912 6.477
1913 6.383
1914 6.288
1915 6.194
1916 6.099
1917 6.005
1918 6.147
1919 6.288
1920 6.43
1921 6.572
1922 6.714
1923 6.739
1924 6.764
1925 6.789
1926 6.814
1927 6.839
1928 6.755
1929 6.672
1930 6.589
1931 6.505
1932 6.422
1933 6.366
1934 6.311
1935 6.255
1936 6.199
1937 6.144
1938 6.172
1939 6.199
1940 6.227
1941 6.255
1942 6.283
1943 6.391
1944 6.5
1945 6.608
1946 6.716
1947 6.825
1948 6.965
1949 7.105
1950 7.245
1951 7.176
1952 7.045
1953 6.931
1954 6.832
1955 6.75
1956 6.682
1957 6.629
1958 6.588
1959 6.558
1960 6.534
1961 6.512
1962 6.49
1963 6.464
1964 6.434
1965 6.399
1966 6.36
1967 6.323
1968 6.288
1969 6.259
1970 6.235
1971 6.219
1972 6.208
1973 6.203
1974 6.201
1975 6.201
1976 6.203
1977 6.204
1978 6.203
1979 6.196
1980 6.18
1981 6.152
1982 6.109
1983 6.054
1984 5.987
1985 5.913
1986 5.837
1987 5.764
1988 5.697
1989 5.636
1990 5.58
1991 5.525
1992 5.465
1993 5.397
1994 5.32
1995 5.237
1996 5.148
1997 5.058
1998 4.97
1999 4.884
2000 4.801
2001 4.718
2002 4.634
2003 4.547
2004 4.459
2005 4.371
2006 4.283
2007 4.199
2008 4.119
2009 4.044
2010 3.974
2011 3.908
2012 3.844
2013 3.783
2014 3.723
2015 3.663
2016 3.605
2017 3.548
2018 3.492
2019 3.438
2020 3.385
2021 3.334
2022 3.284
2023 3.236
2024 3.189
2030 2.942
2040 2.63
2050 2.402
2070 2.092
2080 2.003
2099 1.914