Year Total
1800 6.19
1801 6.19
1802 6.19
1803 6.19
1804 6.19
1805 6.19
1806 6.19
1807 6.19
1808 6.19
1809 6.19
1810 6.19
1811 6.19
1812 6.19
1813 6.19
1814 6.19
1815 6.19
1816 6.19
1817 6.19
1818 6.19
1819 6.19
1820 6.19
1821 6.19
1822 6.19
1823 6.19
1824 6.19
1825 6.19
1826 6.19
1827 6.19
1828 6.19
1829 6.19
1830 6.19
1831 6.19
1832 6.19
1833 6.19
1834 6.19
1835 6.19
1836 6.19
1837 6.19
1838 6.19
1839 6.19
1840 6.19
1841 6.19
1842 6.19
1843 6.19
1844 6.19
1845 6.19
1846 6.19
1847 6.19
1848 6.19
1849 6.19
1850 6.19
1851 6.19
1852 6.19
1853 6.19
1854 6.19
1855 6.19
1856 6.19
1857 6.19
1858 6.19
1859 6.19
1860 6.19
1861 6.19
1862 6.19
1863 6.19
1864 6.19
1865 6.19
1866 6.19
1867 6.19
1868 6.19
1869 6.19
1870 6.19
1871 6.19
1872 6.19
1873 6.19
1874 6.19
1875 6.19
1876 6.19
1877 6.19
1878 6.19
1879 6.19
1880 6.19
1881 6.19
1882 6.19
1883 6.19
1884 6.19
1885 6.19
1886 6.19
1887 6.19
1888 6.19
1889 6.19
1890 6.19
1891 6.19
1892 6.19
1893 6.19
1894 6.19
1895 6.19
1896 6.19
1897 6.19
1898 6.19
1899 6.19
1900 6.19
1901 6.19
1902 6.19
1903 6.19
1904 6.19
1905 6.19
1906 6.19
1907 6.19
1908 6.19
1909 6.19
1910 6.19
1911 6.19
1912 6.19
1913 6.19
1914 6.19
1915 6.19
1916 6.19
1917 6.19
1918 6.19
1919 6.19
1920 6.19
1921 6.19
1922 6.19
1923 6.19
1924 6.19
1925 6.19
1926 6.19
1927 6.19
1928 6.2
1929 6.2
1930 6.2
1931 6.2
1932 6.21
1933 6.21
1934 6.21
1935 6.21
1936 6.22
1937 6.22
1938 6.22
1939 6.22
1940 6.23
1941 6.23
1942 6.23
1943 6.23
1944 6.24
1945 6.24
1946 6.24
1947 6.24
1948 6.25
1949 6.25
1950 6.25
1951 6.26
1952 6.26
1953 6.28
1954 6.29
1955 6.3
1956 6.32
1957 6.34
1958 6.36
1959 6.38
1960 6.41
1961 6.43
1962 6.45
1963 6.48
1964 6.5
1965 6.52
1966 6.55
1967 6.58
1968 6.62
1969 6.66
1970 6.7
1971 6.74
1972 6.78
1973 6.82
1974 6.85
1975 6.88
1976 6.91
1977 6.93
1978 6.95
1979 6.96
1980 6.97
1981 6.97
1982 6.96
1983 6.95
1984 6.92
1985 6.88
1986 6.82
1987 6.75
1988 6.67
1989 6.59
1990 6.5
1991 6.41
1992 6.34
1993 6.27
1994 6.21
1995 6.16
1996 6.11
1997 6.06
1998 6.01
1999 5.95
2000 5.88
2001 5.8
2002 5.72
2003 5.64
2004 5.55
2005 5.46
2006 5.37
2007 5.28
2008 5.19
2009 5.11
2010 5.02
2011 4.94
2012 4.87
2013 4.79
2014 4.72
2015 4.65
2016 4.58
2017 4.51
2018 4.45