Year Total
1800 5.84
1801 5.84
1802 5.84
1803 5.84
1804 5.84
1805 5.84
1806 5.84
1807 5.84
1808 5.84
1809 5.84
1810 5.84
1811 5.84
1812 5.84
1813 5.84
1814 5.84
1815 5.84
1816 5.84
1817 5.84
1818 5.84
1819 5.84
1820 5.84
1821 5.84
1822 5.84
1823 5.84
1824 5.84
1825 5.84
1826 5.84
1827 5.84
1828 5.84
1829 5.84
1830 5.84
1831 5.84
1832 5.84
1833 5.84
1834 5.84
1835 5.84
1836 5.84
1837 5.84
1838 5.84
1839 5.84
1840 5.84
1841 5.84
1842 5.84
1843 5.84
1844 5.84
1845 5.84
1846 5.84
1847 5.84
1848 5.84
1849 5.84
1850 5.84
1851 5.84
1852 5.84
1853 5.84
1854 5.84
1855 5.84
1856 5.84
1857 5.84
1858 5.84
1859 5.84
1860 5.84
1861 5.84
1862 5.84
1863 5.84
1864 5.84
1865 5.84
1866 5.84
1867 5.84
1868 5.84
1869 5.84
1870 5.84
1871 5.84
1872 5.84
1873 5.84
1874 5.84
1875 5.84
1876 5.84
1877 5.84
1878 5.84
1879 5.84
1880 5.84
1881 5.84
1882 5.84
1883 5.84
1884 5.84
1885 5.84
1886 5.84
1887 5.84
1888 5.84
1889 5.84
1890 5.84
1891 5.84
1892 5.84
1893 5.84
1894 5.84
1895 5.84
1896 5.84
1897 5.84
1898 5.84
1899 5.84
1900 5.84
1901 5.84
1902 5.84
1903 5.84
1904 5.84
1905 5.84
1906 5.84
1907 5.84
1908 5.84
1909 5.84
1910 5.84
1911 5.84
1912 5.84
1913 5.84
1914 5.84
1915 5.84
1916 5.84
1917 5.84
1918 5.84
1919 5.84
1920 5.84
1921 5.84
1922 5.84
1923 5.84
1924 5.84
1925 5.84
1926 5.84
1927 5.84
1928 5.84
1929 5.84
1930 5.83
1931 5.83
1932 5.83
1933 5.83
1934 5.83
1935 5.83
1936 5.83
1937 5.83
1938 5.82
1939 5.82
1940 5.82
1941 5.82
1942 5.82
1943 5.82
1944 5.82
1945 5.82
1946 5.82
1947 5.81
1948 5.81
1949 5.81
1950 5.81
1951 5.82
1952 5.84
1953 5.85
1954 5.86
1955 5.86
1956 5.86
1957 5.86
1958 5.86
1959 5.85
1960 5.84
1961 5.83
1962 5.82
1963 5.81
1964 5.81
1965 5.8
1966 5.8
1967 5.8
1968 5.81
1969 5.81
1970 5.81
1971 5.81
1972 5.8
1973 5.79
1974 5.78
1975 5.76
1976 5.74
1977 5.71
1978 5.67
1979 5.63
1980 5.59
1981 5.54
1982 5.49
1983 5.44
1984 5.38
1985 5.31
1986 5.24
1987 5.17
1988 5.09
1989 5
1990 4.92
1991 4.84
1992 4.76
1993 4.69
1994 4.62
1995 4.55
1996 4.48
1997 4.39
1998 4.3
1999 4.2
2000 4.09
2001 3.97
2002 3.86
2003 3.74
2004 3.64
2005 3.55
2006 3.47
2007 3.41
2008 3.37
2009 3.33
2010 3.3
2011 3.28
2012 3.25
2013 3.22
2014 3.19
2015 3.14
2016 3.09
2017 3.04
2018 3