Year Total 1800 7.08 1801 7.08 1802 7.08 1803 7.08 1804 7.08 1805 7.08 1806 7.08 1807 7.08 1808 7.08 1809 7.08 1810 7.08 1811 7.08 1812 7.08 1813 7.08 1814 7.08 1815 7.08 1816 7.08 1817 7.08 1818 7.08 1819 7.08 1820 7.08 1821 7.08 1822 7.08 1823 7.08 1824 7.08 1825 7.08 1826 7.08 1827 7.08 1828 7.08 1829 7.08 1830 7.08 1831 7.08 1832 7.08 1833 7.08 1834 7.08 1835 7.08 1836 7.08 1837 7.08 1838 7.08 1839 7.08 1840 7.08 1841 7.08 1842 7.08 1843 7.08 1844 7.08 1845 7.08 1846 7.08 1847 7.08 1848 7.08 1849 7.08 1850 7.08 1851 7.08 1852 7.08 1853 7.08 1854 7.08 1855 7.08 1856 7.08 1857 7.08 1858 7.08 1859 7.08 1860 7.08 1861 7.08 1862 7.08 1863 7.08 1864 7.08 1865 7.08 1866 7.08 1867 7.08 1868 7.08 1869 7.08 1870 7.08 1871 7.08 1872 7.08 1873 7.08 1874 7.08 1875 7.08 1876 7.08 1877 7.08 1878 7.08 1879 7.08 1880 7.08 1881 7.08 1882 7.08 1883 7.08 1884 7.08 1885 7.08 1886 7.08 1887 7.08 1888 7.08 1889 7.08 1890 7.08 1891 7.08 1892 7.08 1893 7.08 1894 7.08 1895 7.08 1896 7.08 1897 7.08 1898 7.08 1899 7.08 1900 7.08 1901 7.08 1902 7.08 1903 7.08 1904 7.08 1905 7.08 1906 7.08 1907 7.08 1908 7.08 1909 7.08 1910 7.08 1911 7.08 1912 7.08 1913 7.08 1914 7.08 1915 7.08 1916 7.08 1917 7.08 1918 7.08 1919 7.08 1920 7.08 1921 7.08 1922 7.08 1923 7.08 1924 7.08 1925 7.08 1926 7.07 1927 7.07 1928 7.06 1929 7.05 1930 7.05 1931 7.04 1932 7.03 1933 7.03 1934 7.02 1935 7.01 1936 7.01 1937 7 1938 6.99 1939 6.99 1940 6.98 1941 6.97 1942 6.97 1943 6.96 1944 6.95 1945 6.95 1946 6.94 1947 6.93 1948 6.93 1949 6.92 1950 6.92 1951 6.91 1952 6.91 1953 6.91 1954 6.91 1955 6.91 1956 6.91 1957 6.92 1958 6.92 1959 6.93 1960 6.93 1961 6.92 1962 6.91 1963 6.9 1964 6.87 1965 6.83 1966 6.77 1967 6.7 1968 6.62 1969 6.53 1970 6.44 1971 6.36 1972 6.29 1973 6.24 1974 6.21 1975 6.21 1976 6.24 1977 6.29 1978 6.35 1979 6.42 1980 6.48 1981 6.52 1982 6.52 1983 6.47 1984 6.37 1985 6.22 1986 6.01 1987 5.76 1988 5.47 1989 5.15 1990 4.82 1991 4.48 1992 4.14 1993 3.81 1994 3.5 1995 3.22 1996 2.96 1997 2.73 1998 2.53 1999 2.36 2000 2.21 2001 2.09 2002 2 2003 1.93 2004 1.87 2005 1.83 2006 1.81 2007 1.79 2008 1.78 2009 1.77 2010 1.77 2011 1.76 2012 1.74 2013 1.73 2014 1.71 2015 1.69 2016 1.66 2017 1.64 2018 1.61