Year Total
1800 6.94
1801 6.94
1802 6.94
1803 6.94
1804 6.94
1805 6.94
1806 6.94
1807 6.94
1808 6.94
1809 6.94
1810 6.94
1811 6.94
1812 6.94
1813 6.94
1814 6.94
1815 6.94
1816 6.94
1817 6.94
1818 6.94
1819 6.94
1820 6.94
1821 6.94
1822 6.94
1823 6.94
1824 6.94
1825 6.94
1826 6.94
1827 6.94
1828 6.94
1829 6.94
1830 6.94
1831 6.94
1832 6.94
1833 6.94
1834 6.94
1835 6.94
1836 6.94
1837 6.94
1838 6.94
1839 6.94
1840 6.94
1841 6.94
1842 6.94
1843 6.94
1844 6.94
1845 6.94
1846 6.94
1847 6.94
1848 6.94
1849 6.94
1850 6.94
1851 6.94
1852 6.94
1853 6.94
1854 6.94
1855 6.94
1856 6.94
1857 6.94
1858 6.94
1859 6.94
1860 6.94
1861 6.94
1862 6.94
1863 6.94
1864 6.94
1865 6.94
1866 6.94
1867 6.94
1868 6.94
1869 6.94
1870 6.94
1871 6.94
1872 6.94
1873 6.94
1874 6.94
1875 6.94
1876 6.94
1877 6.94
1878 6.94
1879 6.94
1880 6.94
1881 6.94
1882 6.94
1883 6.94
1884 6.94
1885 6.94
1886 6.94
1887 6.94
1888 6.94
1889 6.94
1890 6.94
1891 6.94
1892 6.94
1893 6.94
1894 6.94
1895 6.94
1896 6.94
1897 6.94
1898 6.94
1899 6.94
1900 6.94
1901 6.94
1902 6.94
1903 6.94
1904 6.94
1905 6.94
1906 6.94
1907 6.94
1908 6.94
1909 6.94
1910 6.94
1911 6.94
1912 6.94
1913 6.94
1914 6.94
1915 6.94
1916 6.94
1917 6.94
1918 6.94
1919 6.94
1920 6.94
1921 6.94
1922 6.94
1923 6.94
1924 6.94
1925 6.94
1926 6.94
1927 6.94
1928 6.94
1929 6.94
1930 6.94
1931 6.94
1932 6.94
1933 6.94
1934 6.94
1935 6.94
1936 6.94
1937 6.94
1938 6.94
1939 6.94
1940 6.94
1941 6.94
1942 6.94
1943 6.94
1944 6.94
1945 6.94
1946 6.94
1947 6.94
1948 6.94
1949 6.94
1950 6.94
1951 6.95
1952 6.97
1953 6.98
1954 6.99
1955 6.99
1956 6.98
1957 6.98
1958 6.96
1959 6.95
1960 6.93
1961 6.91
1962 6.89
1963 6.88
1964 6.86
1965 6.84
1966 6.82
1967 6.79
1968 6.76
1969 6.71
1970 6.66
1971 6.58
1972 6.48
1973 6.37
1974 6.25
1975 6.11
1976 5.97
1977 5.84
1978 5.72
1979 5.6
1980 5.51
1981 5.42
1982 5.35
1983 5.28
1984 5.22
1985 5.14
1986 5.05
1987 4.93
1988 4.8
1989 4.64
1990 4.45
1991 4.25
1992 4.04
1993 3.83
1994 3.62
1995 3.42
1996 3.23
1997 3.06
1998 2.91
1999 2.77
2000 2.64
2001 2.53
2002 2.43
2003 2.33
2004 2.24
2005 2.15
2006 2.07
2007 2.01
2008 1.95
2009 1.9
2010 1.87
2011 1.84
2012 1.82
2013 1.8
2014 1.78
2015 1.77
2016 1.75
2017 1.73
2018 1.72