Year Total
1800 5.78
1801 5.78
1802 5.78
1803 5.78
1804 5.78
1805 5.78
1806 5.78
1807 5.78
1808 5.78
1809 5.78
1810 5.78
1811 5.78
1812 5.78
1813 5.78
1814 5.78
1815 5.78
1816 5.78
1817 5.78
1818 5.78
1819 5.78
1820 5.78
1821 5.78
1822 5.78
1823 5.78
1824 5.78
1825 5.78
1826 5.78
1827 5.78
1828 5.78
1829 5.78
1830 5.78
1831 5.78
1832 5.78
1833 5.78
1834 5.78
1835 5.78
1836 5.78
1837 5.78
1838 5.78
1839 5.78
1840 5.78
1841 5.78
1842 5.78
1843 5.78
1844 5.78
1845 5.78
1846 5.78
1847 5.78
1848 5.78
1849 5.78
1850 5.78
1851 5.78
1852 5.78
1853 5.78
1854 5.78
1855 5.78
1856 5.78
1857 5.78
1858 5.78
1859 5.78
1860 5.78
1861 5.78
1862 5.78
1863 5.78
1864 5.78
1865 5.78
1866 5.78
1867 5.78
1868 5.78
1869 5.78
1870 5.78
1871 5.78
1872 5.78
1873 5.78
1874 5.78
1875 5.78
1876 5.78
1877 5.78
1878 5.78
1879 5.78
1880 5.78
1881 5.78
1882 5.78
1883 5.78
1884 5.78
1885 5.78
1886 5.78
1887 5.78
1888 5.78
1889 5.78
1890 5.78
1891 5.58
1892 5.39
1893 5.19
1894 4.99
1895 4.8
1896 4.6
1897 4.4
1898 4.21
1899 4.01
1900 4.55
1901 5.09
1902 5.63
1903 5.67
1904 5.7
1905 5.74
1906 5.78
1907 5.82
1908 5.82
1909 5.81
1910 5.81
1911 5.81
1912 5.8
1913 5.8
1914 5.8
1915 5.79
1916 5.79
1917 5.79
1918 5.78
1919 5.78
1920 5.67
1921 5.57
1922 5.46
1923 5.35
1924 5.25
1925 5.14
1926 5.03
1927 4.93
1928 4.82
1929 4.71
1930 4.61
1931 4.5
1932 4.46
1933 4.42
1934 4.38
1935 4.33
1936 4.29
1937 4.25
1938 4.21
1939 4.17
1940 4.13
1941 4.08
1942 4.04
1943 4
1944 4.11
1945 4.22
1946 4.32
1947 4.43
1948 4.54
1949 4.65
1950 4.76
1951 4.56
1952 4.22
1953 3.96
1954 3.78
1955 3.68
1956 3.67
1957 3.72
1958 3.84
1959 4
1960 4.18
1961 4.36
1962 4.51
1963 4.61
1964 4.64
1965 4.62
1966 4.54
1967 4.43
1968 4.31
1969 4.18
1970 4.03
1971 3.86
1972 3.65
1973 3.4
1974 3.13
1975 2.84
1976 2.57
1977 2.33
1978 2.13
1979 1.99
1980 1.89
1981 1.84
1982 1.83
1983 1.83
1984 1.83
1985 1.84
1986 1.84
1987 1.83
1988 1.81
1989 1.78
1990 1.75
1991 1.72
1992 1.68
1993 1.66
1994 1.65
1995 1.64
1996 1.64
1997 1.63
1998 1.63
1999 1.63
2000 1.62
2001 1.61
2002 1.59
2003 1.58
2004 1.58
2005 1.57
2006 1.57
2007 1.58
2008 1.6
2009 1.62
2010 1.64
2011 1.66
2012 1.69
2013 1.7
2014 1.71
2015 1.72
2016 1.72
2017 1.72
2018 1.72