Year Total
1800 6.11
1801 6.11
1802 6.11
1803 6.11
1804 6.11
1805 6.11
1806 6.11
1807 6.11
1808 6.11
1809 6.11
1810 6.11
1811 6.11
1812 6.11
1813 6.11
1814 6.11
1815 6.11
1816 6.11
1817 6.11
1818 6.11
1819 6.11
1820 6.11
1821 6.11
1822 6.11
1823 6.11
1824 6.11
1825 6.11
1826 6.11
1827 6.11
1828 6.11
1829 6.11
1830 6.11
1831 6.11
1832 6.11
1833 6.11
1834 6.11
1835 6.11
1836 6.11
1837 6.11
1838 6.11
1839 6.11
1840 6.11
1841 6.11
1842 6.11
1843 6.11
1844 6.11
1845 6.11
1846 6.11
1847 6.11
1848 6.11
1849 6.11
1850 6.11
1851 6.11
1852 6.11
1853 6.11
1854 6.11
1855 6.11
1856 6.11
1857 6.11
1858 6.11
1859 6.11
1860 6.11
1861 6.11
1862 6.11
1863 6.11
1864 6.11
1865 6.11
1866 6.11
1867 6.11
1868 6.11
1869 6.11
1870 6.11
1871 6.11
1872 6.11
1873 6.11
1874 6.11
1875 6.11
1876 6.11
1877 6.11
1878 6.11
1879 6.11
1880 6.11
1881 6.11
1882 6.11
1883 6.11
1884 6.11
1885 6.11
1886 6.11
1887 6.11
1888 6.11
1889 6.11
1890 6.11
1891 6.11
1892 6.11
1893 6.11
1894 6.11
1895 6.11
1896 6.11
1897 6.11
1898 6.11
1899 6.11
1900 6.11
1901 6.11
1902 6.11
1903 6.11
1904 6.11
1905 6.11
1906 6.11
1907 6.11
1908 6.11
1909 6.11
1910 6.11
1911 6.11
1912 6.11
1913 6.11
1914 6.11
1915 6.11
1916 6.11
1917 6.11
1918 6.11
1919 6.11
1920 6.11
1921 6.11
1922 6.11
1923 6.11
1924 6.11
1925 6.11
1926 6.1
1927 6.1
1928 6.09
1929 6.09
1930 6.08
1931 6.08
1932 6.07
1933 6.07
1934 6.06
1935 6.06
1936 6.05
1937 6.05
1938 6.04
1939 6.04
1940 6.03
1941 6.02
1942 6.02
1943 6.01
1944 6.01
1945 6
1946 6
1947 5.99
1948 5.99
1949 5.98
1950 5.98
1951 5.98
1952 5.99
1953 6.01
1954 6.02
1955 6.03
1956 6.05
1957 6.07
1958 6.08
1959 6.1
1960 6.11
1961 6.13
1962 6.14
1963 6.15
1964 6.15
1965 6.16
1966 6.17
1967 6.18
1968 6.19
1969 6.21
1970 6.23
1971 6.25
1972 6.28
1973 6.31
1974 6.34
1975 6.37
1976 6.4
1977 6.44
1978 6.47
1979 6.5
1980 6.53
1981 6.56
1982 6.58
1983 6.6
1984 6.62
1985 6.63
1986 6.64
1987 6.64
1988 6.63
1989 6.62
1990 6.6
1991 6.57
1992 6.54
1993 6.49
1994 6.44
1995 6.39
1996 6.33
1997 6.27
1998 6.21
1999 6.15
2000 6.08
2001 6.02
2002 5.95
2003 5.88
2004 5.8
2005 5.73
2006 5.65
2007 5.58
2008 5.5
2009 5.42
2010 5.34
2011 5.26
2012 5.18
2013 5.09
2014 5.01
2015 4.93
2016 4.86
2017 4.78
2018 4.7