Year Total
1801 0
1802 0
1803 0
1804 0
1805 0
1806 0
1807 0
1808 0
1809 0
1810 0
1811 0
1812 0
1813 0
1814 0
1815 0
1816 0
1817 0
1818 0
1819 0
1820 0
1821 0.4689
1822 0.4689
1823 0.4689
1824 0.4689
1825 0.4689
1826 0.4689
1827 0.4689
1828 0.4689
1829 0.4689
1830 0.4689
1831 0.4689
1832 0.4689
1833 0.4689
1834 0.4689
1835 0.4689
1836 0.4689
1837 0.4689
1838 0.4689
1839 0.4689
1840 0.4689
1841 0.4689
1842 0.4689
1843 0.4689
1844 0.4689
1845 0.4689
1846 0.4689
1847 0.4689
1848 0.4689
1849 0.4689
1850 0.4689
1851 0.4689
1852 0.4689
1853 0.4689
1854 0.4689
1855 0.4689
1856 0.4689
1857 0.4689
1858 0.4689
1859 0.4689
1860 0.4689
1861 0.4689
1862 0.4689
1863 0.4689
1864 0.4689
1865 0.4689
1866 0.4689
1867 0.4689
1868 0.4689
1869 0.4689
1870 0.4689
1871 0.4689
1872 0.4689
1873 0.4689
1874 0.4689
1875 0.4689
1876 0.4689
1877 0.4689
1878 0.4689
1879 0.4689
1880 0.4689
1881 0.4689
1882 0.4689
1883 0.4689
1884 0.4689
1885 0.4689
1886 0.4689
1887 0.4689
1888 0.4689
1889 0.4689
1890 0.4689
1891 0.4689
1892 0.4689
1893 0.4689
1894 0.4689
1895 0.4689
1896 0.4689
1897 0.4689
1898 0.4689
1899 0.4689
1900 0.4689
1901 0.4689
1902 0.4689
1903 0.4689
1904 0.4689
1905 3.929
1906 3.928
1907 3.929
1908 3.929
1909 3.929
1910 3.929
1911 3.929
1912 0.8321
1913 0.8317
1914 1.848
1915 1.848
1916 1.848
1917 1.848
1918 1.848
1919 1.848
1920 1.848
1921 1.849
1922 3.731
1923 3.731
1924 3.731
1925 3.731
1926 3.731
1927 3.731
1928 3.731
1929 3.731
1930 3.731
1931 3.732
1932 3.731
1933 3.731
1934 3.731
1935 3.731
1936 3.731
1937 3.327
1938 3.327
1939 3.327
1940 3.327
1941 3.327
1942 3.327
1943 3.327
1944 3.327
1945 3.327
1946 3.327
1947 11.4
1948 11.4
1949 11.4
1950 11.4
1951 5.6
1952 3.103
1953 3.916
1954 5.792
1955 3.366
1956 4.022
1957 4.026
1958 2.936
1959 5.85
1960 13.64
1961 12.59
1962 20.83
1963 5.42
1964 14.37
1965 15.34
1966 4.094
1967 9.414
1968 -4.634
1969 4.253
1970 29.79
1971 1.831
1972 12.49
1973 5.682
1974 11.55
1975 3.877
1976 3.542
1977 3.238
1978 2.7
1979 1.42
1980 2.06
1981 6.584
1982 5.677
1983 0.01538
1984 1.76
1985 6.273
1986 4.025
1987 9.149
1988 -2.703
1989 6.144
1990 1.695
1991 0.7322
1992 -0.2836
1993 2.242
1994 4.799
1995 5.117
1996 3.524
1997 3.745
1998 3.323
1999 3.689
2000 2.301
2001 1.694
2002 2.746
2003 2.466
2004 2.519
2005 3.162
2006 2.904
2007 14.18
2008 3.502
2009 1.639
2010 2.28
2011 0.5251
2012 2.084
2013 2.962