Year Total
1800 6.63
1801 6.63
1802 6.63
1803 6.63
1804 6.63
1805 6.63
1806 6.63
1807 6.63
1808 6.63
1809 6.63
1810 6.63
1811 6.63
1812 6.63
1813 6.63
1814 6.63
1815 6.63
1816 6.63
1817 6.63
1818 6.63
1819 6.63
1820 6.63
1821 6.63
1822 6.63
1823 6.63
1824 6.63
1825 6.63
1826 6.63
1827 6.63
1828 6.63
1829 6.63
1830 6.63
1831 6.63
1832 6.63
1833 6.63
1834 6.63
1835 6.63
1836 6.63
1837 6.63
1838 6.63
1839 6.63
1840 6.63
1841 6.63
1842 6.63
1843 6.63
1844 6.63
1845 6.63
1846 6.63
1847 6.63
1848 6.63
1849 6.63
1850 6.63
1851 6.63
1852 6.63
1853 6.63
1854 6.63
1855 6.63
1856 6.63
1857 6.63
1858 6.63
1859 6.63
1860 6.63
1861 6.63
1862 6.63
1863 6.63
1864 6.63
1865 6.63
1866 6.63
1867 6.63
1868 6.63
1869 6.63
1870 6.63
1871 6.63
1872 6.63
1873 6.63
1874 6.63
1875 6.63
1876 6.63
1877 6.63
1878 6.63
1879 6.63
1880 6.63
1881 6.63
1882 6.63
1883 6.63
1884 6.63
1885 6.63
1886 6.63
1887 6.63
1888 6.63
1889 6.63
1890 6.63
1891 6.63
1892 6.63
1893 6.63
1894 6.63
1895 6.63
1896 6.63
1897 6.63
1898 6.63
1899 6.63
1900 6.63
1901 6.63
1902 6.63
1903 6.63
1904 6.63
1905 6.63
1906 6.63
1907 6.63
1908 6.63
1909 6.63
1910 6.63
1911 6.63
1912 6.63
1913 6.63
1914 6.63
1915 6.63
1916 6.63
1917 6.63
1918 6.63
1919 6.63
1920 6.63
1921 6.63
1922 6.63
1923 6.63
1924 6.63
1925 6.63
1926 6.63
1927 6.63
1928 6.63
1929 6.63
1930 6.62
1931 6.62
1932 6.62
1933 6.62
1934 6.63
1935 6.63
1936 6.63
1937 6.64
1938 6.64
1939 6.65
1940 6.65
1941 6.66
1942 6.67
1943 6.68
1944 6.69
1945 6.7
1946 6.71
1947 6.72
1948 6.74
1949 6.75
1950 6.77
1951 6.79
1952 6.81
1953 6.84
1954 6.87
1955 6.89
1956 6.91
1957 6.93
1958 6.94
1959 6.95
1960 6.95
1961 6.94
1962 6.92
1963 6.9
1964 6.88
1965 6.87
1966 6.86
1967 6.86
1968 6.85
1969 6.85
1970 6.84
1971 6.82
1972 6.8
1973 6.77
1974 6.73
1975 6.68
1976 6.63
1977 6.59
1978 6.54
1979 6.5
1980 6.46
1981 6.44
1982 6.41
1983 6.39
1984 6.37
1985 6.35
1986 6.33
1987 6.31
1988 6.28
1989 6.25
1990 6.21
1991 6.17
1992 6.12
1993 6.07
1994 6.02
1995 5.96
1996 5.92
1997 5.88
1998 5.85
1999 5.83
2000 5.82
2001 5.81
2002 5.8
2003 5.78
2004 5.76
2005 5.74
2006 5.71
2007 5.67
2008 5.64
2009 5.6
2010 5.56
2011 5.52
2012 5.47
2013 5.42
2014 5.37
2015 5.31
2016 5.24
2017 5.18
2018 5.12