Year Total
1800 6.03
1801 6.03
1802 6.03
1803 6.03
1804 6.03
1805 6.03
1806 6.03
1807 6.03
1808 6.03
1809 6.03
1810 6.03
1811 6.03
1812 6.03
1813 6.03
1814 6.03
1815 6.03
1816 6.03
1817 6.03
1818 6.03
1819 6.03
1820 6.03
1821 6.03
1822 6.03
1823 6.03
1824 6.03
1825 6.03
1826 6.03
1827 6.03
1828 6.03
1829 6.03
1830 6.03
1831 6.03
1832 6.03
1833 6.03
1834 6.03
1835 6.03
1836 6.03
1837 6.03
1838 6.03
1839 6.03
1840 6.03
1841 6.03
1842 6.03
1843 6.03
1844 6.03
1845 6.03
1846 6.03
1847 6.03
1848 6.03
1849 6.03
1850 6.03
1851 5.81
1852 5.59
1853 5.36
1854 5.14
1855 4.92
1856 4.7
1857 4.47
1858 4.25
1859 4.03
1860 3.81
1861 3.95
1862 3.87
1863 3.78
1864 3.94
1865 3.73
1866 4.03
1867 3.83
1868 3.85
1869 3.86
1870 3.77
1871 3.81
1872 3.83
1873 3.7
1874 3.91
1875 3.78
1876 3.97
1877 3.82
1878 3.64
1879 3.32
1880 3.27
1881 3.28
1882 3.38
1883 3.35
1884 3.83
1885 3.82
1886 4.01
1887 4.19
1888 4.38
1889 4.57
1890 4.73
1891 4.8
1892 4.88
1893 4.95
1894 5.03
1895 5.1
1896 5.18
1897 5.25
1898 5.32
1899 5.4
1900 5.47
1901 5.35
1902 5.22
1903 5.1
1904 4.97
1905 4.85
1906 4.72
1907 4.6
1908 4.47
1909 4.35
1910 4.22
1911 4.09
1912 3.97
1913 3.84
1914 3.72
1915 3.59
1916 3.47
1917 3.34
1918 3.22
1919 3.09
1920 2.97
1921 2.84
1922 2.88
1923 2.55
1924 2.61
1925 3.52
1926 4.02
1927 3.86
1928 4.09
1929 3.87
1930 4.19
1931 3.83
1932 3.8
1933 3.84
1934 4.17
1935 3.78
1936 3.69
1937 3.52
1938 3.49
1939 3.34
1940 3.32
1941 3.22
1942 3.13
1943 3.03
1944 2.93
1945 2.84
1946 2.74
1947 2.65
1948 2.55
1949 2.46
1950 2.36
1951 2.38
1952 2.4
1953 2.41
1954 2.41
1955 2.41
1956 2.4
1957 2.39
1958 2.37
1959 2.35
1960 2.33
1961 2.32
1962 2.32
1963 2.34
1964 2.37
1965 2.41
1966 2.46
1967 2.51
1968 2.54
1969 2.56
1970 2.57
1971 2.57
1972 2.55
1973 2.54
1974 2.52
1975 2.5
1976 2.47
1977 2.44
1978 2.39
1979 2.34
1980 2.27
1981 2.19
1982 2.1
1983 2
1984 1.9
1985 1.81
1986 1.71
1987 1.63
1988 1.57
1989 1.51
1990 1.47
1991 1.44
1992 1.42
1993 1.4
1994 1.38
1995 1.37
1996 1.36
1997 1.35
1998 1.33
1999 1.33
2000 1.32
2001 1.33
2002 1.34
2003 1.36
2004 1.38
2005 1.4
2006 1.42
2007 1.44
2008 1.44
2009 1.43
2010 1.41
2011 1.39
2012 1.37
2013 1.35
2014 1.33
2015 1.31
2016 1.31
2017 1.3
2018 1.3