Year Total
1800 6.16
1801 6.16
1802 6.16
1803 6.16
1804 6.16
1805 6.16
1806 6.16
1807 6.16
1808 6.16
1809 6.16
1810 6.16
1811 6.16
1812 6.16
1813 6.16
1814 6.16
1815 6.16
1816 6.16
1817 6.16
1818 6.16
1819 6.16
1820 6.16
1821 6.16
1822 6.16
1823 6.16
1824 6.16
1825 6.16
1826 6.16
1827 6.16
1828 6.16
1829 6.16
1830 6.16
1831 6.16
1832 6.16
1833 6.16
1834 6.16
1835 6.16
1836 6.16
1837 6.16
1838 6.16
1839 6.16
1840 6.16
1841 6.16
1842 6.16
1843 6.16
1844 6.16
1845 6.16
1846 6.16
1847 6.16
1848 6.16
1849 6.16
1850 6.16
1851 6.16
1852 6.16
1853 6.16
1854 6.16
1855 6.16
1856 6.16
1857 6.16
1858 6.16
1859 6.16
1860 6.16
1861 6.16
1862 6.16
1863 6.16
1864 6.16
1865 6.16
1866 6.16
1867 6.16
1868 6.16
1869 6.16
1870 6.16
1871 6.16
1872 6.16
1873 6.16
1874 6.16
1875 6.16
1876 6.16
1877 6.16
1878 6.16
1879 6.16
1880 6.16
1881 6.16
1882 6.16
1883 6.16
1884 6.16
1885 6.16
1886 6.16
1887 6.16
1888 6.16
1889 6.16
1890 6.16
1891 6.16
1892 6.16
1893 6.16
1894 6.16
1895 6.16
1896 6.16
1897 6.16
1898 6.16
1899 6.16
1900 6.16
1901 6.16
1902 6.16
1903 6.16
1904 6.16
1905 6.16
1906 6.16
1907 6.16
1908 6.16
1909 6.16
1910 6.16
1911 6.16
1912 6.16
1913 6.16
1914 6.16
1915 6.16
1916 6.16
1917 6.16
1918 6.16
1919 6.16
1920 6.16
1921 6.16
1922 6.16
1923 6.16
1924 6.16
1925 6.16
1926 6.16
1927 6.16
1928 6.16
1929 6.16
1930 6.16
1931 6.16
1932 6.16
1933 6.16
1934 6.16
1935 6.16
1936 6.25
1937 6.34
1938 6.43
1939 6.52
1940 6.61
1941 6.7
1942 6.79
1943 6.88
1944 6.97
1945 7.06
1946 7.15
1947 7.24
1948 7.33
1949 7.42
1950 7.51
1951 7.54
1952 7.59
1953 7.63
1954 7.66
1955 7.67
1956 7.68
1957 7.67
1958 7.64
1959 7.61
1960 7.56
1961 7.49
1962 7.4
1963 7.3
1964 7.19
1965 7.05
1966 6.9
1967 6.74
1968 6.56
1969 6.38
1970 6.18
1971 5.98
1972 5.78
1973 5.58
1974 5.38
1975 5.19
1976 5.01
1977 4.85
1978 4.69
1979 4.55
1980 4.42
1981 4.3
1982 4.19
1983 4.08
1984 3.98
1985 3.88
1986 3.78
1987 3.69
1988 3.61
1989 3.54
1990 3.47
1991 3.4
1992 3.33
1993 3.26
1994 3.2
1995 3.13
1996 3.07
1997 3.01
1998 2.97
1999 2.93
2000 2.89
2001 2.86
2002 2.84
2003 2.81
2004 2.78
2005 2.75
2006 2.72
2007 2.69
2008 2.66
2009 2.63
2010 2.6
2011 2.57
2012 2.54
2013 2.51
2014 2.48
2015 2.45
2016 2.42
2017 2.39
2018 2.36