Year Total
1800 5.75
1801 5.75
1802 5.75
1803 5.75
1804 5.75
1805 5.75
1806 5.75
1807 5.75
1808 5.75
1809 5.75
1810 5.75
1811 5.75
1812 5.75
1813 5.75
1814 5.75
1815 5.75
1816 5.75
1817 5.75
1818 5.75
1819 5.75
1820 5.75
1821 5.75
1822 5.75
1823 5.75
1824 5.75
1825 5.75
1826 5.75
1827 5.75
1828 5.75
1829 5.75
1830 5.75
1831 5.75
1832 5.75
1833 5.75
1834 5.75
1835 5.75
1836 5.75
1837 5.75
1838 5.75
1839 5.75
1840 5.75
1841 5.75
1842 5.75
1843 5.75
1844 5.75
1845 5.75
1846 5.75
1847 5.75
1848 5.75
1849 5.75
1850 5.75
1851 5.75
1852 5.75
1853 5.75
1854 5.75
1855 5.75
1856 5.75
1857 5.75
1858 5.75
1859 5.75
1860 5.75
1861 5.75
1862 5.75
1863 5.75
1864 5.75
1865 5.75
1866 5.75
1867 5.75
1868 5.75
1869 5.75
1870 5.75
1871 5.75
1872 5.75
1873 5.75
1874 5.75
1875 5.75
1876 5.75
1877 5.75
1878 5.75
1879 5.75
1880 5.75
1881 5.75
1882 5.86
1883 5.96
1884 6.07
1885 6.18
1886 6
1887 5.83
1888 5.65
1889 5.48
1890 5.31
1891 5.42
1892 5.53
1893 5.64
1894 5.76
1895 5.87
1896 5.79
1897 5.7
1898 5.62
1899 5.54
1900 5.45
1901 5.41
1902 5.38
1903 5.34
1904 5.3
1905 5.26
1906 5.22
1907 5.18
1908 5.14
1909 5.1
1910 5.06
1911 5.02
1912 4.98
1913 4.94
1914 4.9
1915 5
1916 5.09
1917 5.19
1918 5.28
1919 5.37
1920 5.31
1921 5.26
1922 5.2
1923 5.14
1924 5.08
1925 4.98
1926 4.87
1927 4.77
1928 4.67
1929 4.57
1930 4.47
1931 4.36
1932 4.26
1933 4.16
1934 4.06
1935 3.96
1936 3.85
1937 3.75
1938 3.65
1939 3.55
1940 3.45
1941 3.34
1942 3.24
1943 3.14
1944 3.04
1945 2.94
1946 2.83
1947 2.73
1948 2.87
1949 3.1
1950 2.95
1951 2.9
1952 2.8
1953 2.71
1954 2.63
1955 2.56
1956 2.5
1957 2.45
1958 2.4
1959 2.37
1960 2.33
1961 2.3
1962 2.27
1963 2.24
1964 2.21
1965 2.18
1966 2.14
1967 2.1
1968 2.07
1969 2.04
1970 2.01
1971 1.99
1972 1.98
1973 1.97
1974 1.98
1975 1.99
1976 2
1977 2.01
1978 2.01
1979 2.01
1980 2
1981 1.99
1982 1.98
1983 1.96
1984 1.94
1985 1.92
1986 1.89
1987 1.84
1988 1.79
1989 1.73
1990 1.67
1991 1.62
1992 1.57
1993 1.54
1994 1.52
1995 1.52
1996 1.51
1997 1.51
1998 1.49
1999 1.47
2000 1.44
2001 1.42
2002 1.39
2003 1.38
2004 1.37
2005 1.38
2006 1.4
2007 1.41
2008 1.43
2009 1.45
2010 1.47
2011 1.48
2012 1.49
2013 1.49
2014 1.49
2015 1.47
2016 1.46
2017 1.45
2018 1.45