Year Total
1800 5.15
1801 5.15
1802 5.15
1803 5.15
1804 5.15
1805 5.15
1806 5.15
1807 5.15
1808 5.15
1809 5.15
1810 5.15
1811 5.15
1812 5.15
1813 5.15
1814 5.15
1815 5.15
1816 5.15
1817 5.15
1818 5.15
1819 5.15
1820 5.15
1821 5.15
1822 5.15
1823 5.15
1824 5.15
1825 5.15
1826 5.15
1827 5.15
1828 5.15
1829 5.15
1830 5.15
1831 5.15
1832 5.15
1833 5.15
1834 5.15
1835 5.15
1836 5.15
1837 5.15
1838 5.15
1839 5.15
1840 5.15
1841 5.15
1842 5.15
1843 5.15
1844 5.15
1845 5.15
1846 5.15
1847 5.15
1848 5.15
1849 5.15
1850 5.15
1851 5.15
1852 5.15
1853 5.15
1854 5.15
1855 5.15
1856 5.15
1857 5.15
1858 5.15
1859 5.15
1860 5.15
1861 5.15
1862 5.15
1863 5.15
1864 5.15
1865 5.15
1866 5.15
1867 5.15
1868 5.15
1869 5.15
1870 5.15
1871 5.15
1872 5.15
1873 5.15
1874 5.15
1875 5.15
1876 5.15
1877 5.15
1878 5.15
1879 5.15
1880 5.15
1881 5.15
1882 5.15
1883 5.15
1884 5.15
1885 5.15
1886 5.15
1887 5.15
1888 5.15
1889 5.15
1890 5.15
1891 5.15
1892 5.15
1893 5.15
1894 5.15
1895 5.15
1896 5.15
1897 5.15
1898 5.15
1899 5.15
1900 5.15
1901 5.09
1902 5.02
1903 4.96
1904 4.89
1905 4.83
1906 4.76
1907 4.7
1908 4.63
1909 4.57
1910 4.5
1911 4.6
1912 4.7
1913 4.79
1914 4.89
1915 4.98
1916 5.02
1917 5.05
1918 5.08
1919 5.11
1920 5.15
1921 5.11
1922 5.08
1923 5.04
1924 5.01
1925 4.97
1926 4.92
1927 4.87
1928 4.82
1929 4.77
1930 4.72
1931 5.11
1932 5.51
1933 5.01
1934 5.24
1935 5.29
1936 5.31
1937 5.12
1938 5.17
1939 5.31
1940 5.17
1941 5.33
1942 5.39
1943 5.19
1944 5.44
1945 5.61
1946 5.57
1947 5.65
1948 5.39
1949 5.23
1950 4.98
1951 4.98
1952 4.98
1953 4.97
1954 4.96
1955 4.94
1956 4.91
1957 4.87
1958 4.81
1959 4.75
1960 4.66
1961 4.55
1962 4.41
1963 4.25
1964 4.08
1965 3.89
1966 3.7
1967 3.53
1968 3.38
1969 3.25
1970 3.15
1971 3.07
1972 3.01
1973 2.96
1974 2.91
1975 2.86
1976 2.82
1977 2.77
1978 2.72
1979 2.66
1980 2.61
1981 2.55
1982 2.49
1983 2.44
1984 2.39
1985 2.34
1986 2.31
1987 2.28
1988 2.26
1989 2.24
1990 2.22
1991 2.2
1992 2.18
1993 2.15
1994 2.12
1995 2.09
1996 2.05
1997 2.01
1998 1.98
1999 1.94
2000 1.91
2001 1.89
2002 1.86
2003 1.84
2004 1.82
2005 1.79
2006 1.76
2007 1.73
2008 1.69
2009 1.65
2010 1.61
2011 1.58
2012 1.54
2013 1.52
2014 1.5
2015 1.48
2016 1.47
2017 1.47
2018 1.46