Year Total
1800 6.95
1801 6.95
1802 6.95
1803 6.95
1804 6.95
1805 6.95
1806 6.95
1807 6.95
1808 6.95
1809 6.95
1810 6.95
1811 6.95
1812 6.95
1813 6.95
1814 6.95
1815 6.95
1816 6.95
1817 6.95
1818 6.95
1819 6.95
1820 6.95
1821 6.95
1822 6.95
1823 6.95
1824 6.95
1825 6.95
1826 6.95
1827 6.95
1828 6.95
1829 6.95
1830 6.95
1831 6.95
1832 6.95
1833 6.95
1834 6.95
1835 6.95
1836 6.95
1837 6.95
1838 6.95
1839 6.95
1840 6.95
1841 6.95
1842 6.95
1843 6.95
1844 6.95
1845 6.95
1846 6.95
1847 6.95
1848 6.95
1849 6.95
1850 6.95
1851 6.95
1852 6.95
1853 6.95
1854 6.95
1855 6.95
1856 6.95
1857 6.95
1858 6.95
1859 6.95
1860 6.95
1861 6.95
1862 6.95
1863 6.95
1864 6.95
1865 6.95
1866 6.95
1867 6.95
1868 6.95
1869 6.95
1870 6.95
1871 6.95
1872 6.95
1873 6.95
1874 6.95
1875 6.95
1876 6.95
1877 6.95
1878 6.95
1879 6.95
1880 6.95
1881 6.95
1882 6.95
1883 6.95
1884 6.95
1885 6.95
1886 6.95
1887 6.95
1888 6.95
1889 6.95
1890 6.95
1891 6.95
1892 6.95
1893 6.95
1894 6.95
1895 6.95
1896 6.95
1897 6.95
1898 6.95
1899 6.95
1900 6.95
1901 6.95
1902 6.95
1903 6.95
1904 6.95
1905 6.95
1906 6.95
1907 6.95
1908 6.95
1909 6.95
1910 6.95
1911 6.95
1912 6.95
1913 6.95
1914 6.95
1915 6.95
1916 6.95
1917 6.95
1918 6.95
1919 6.95
1920 6.95
1921 6.95
1922 6.95
1923 6.95
1924 6.95
1925 6.95
1926 6.95
1927 6.95
1928 6.95
1929 6.95
1930 6.95
1931 6.95
1932 6.95
1933 6.95
1934 6.95
1935 6.95
1936 6.95
1937 6.95
1938 6.95
1939 6.95
1940 6.95
1941 6.95
1942 6.95
1943 6.95
1944 6.95
1945 6.95
1946 6.95
1947 6.95
1948 6.95
1949 6.95
1950 6.95
1951 6.95
1952 6.95
1953 6.95
1954 6.95
1955 6.95
1956 6.95
1957 6.96
1958 6.96
1959 6.97
1960 6.97
1961 6.96
1962 6.96
1963 6.94
1964 6.91
1965 6.87
1966 6.81
1967 6.75
1968 6.67
1969 6.57
1970 6.47
1971 6.33
1972 6.18
1973 6
1974 5.83
1975 5.68
1976 5.59
1977 5.56
1978 5.6
1979 5.71
1980 5.87
1981 6.04
1982 6.19
1983 6.3
1984 6.34
1985 6.31
1986 6.23
1987 6.1
1988 5.94
1989 5.78
1990 5.6
1991 5.42
1992 5.24
1993 5.05
1994 4.87
1995 4.69
1996 4.5
1997 4.33
1998 4.15
1999 3.97
2000 3.81
2001 3.65
2002 3.52
2003 3.41
2004 3.31
2005 3.23
2006 3.16
2007 3.09
2008 3.02
2009 2.95
2010 2.88
2011 2.81
2012 2.74
2013 2.68
2014 2.63
2015 2.59
2016 2.56
2017 2.53
2018 2.5