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 0.9569
1822 0.9569
1823 0.9569
1824 0.9569
1825 0.9569
1826 0.957
1827 0.9569
1828 0.957
1829 0.9569
1830 0.957
1831 0.9569
1832 0.9569
1833 0.957
1834 0.9569
1835 0.9569
1836 0.9569
1837 0.957
1838 0.9569
1839 0.957
1840 0.9568
1841 0.957
1842 0.957
1843 0.9569
1844 0.9569
1845 0.9569
1846 0.957
1847 0.9569
1848 0.9569
1849 0.9569
1850 0.957
1851 0.9569
1852 0.957
1853 0.9569
1854 0.9569
1855 0.957
1856 0.9569
1857 0.9569
1858 0.957
1859 0.9569
1860 0.957
1861 0.9569
1862 0.957
1863 0.9569
1864 0.9569
1865 0.9569
1866 0.9569
1867 0.957
1868 0.9569
1869 0.9569
1870 0.9569
1871 0.957
1872 0.9569
1873 0.9569
1874 0.957
1875 0.9568
1876 0.9569
1877 0.957
1878 0.9569
1879 0.9569
1880 0.9569
1881 0.9569
1882 0.9569
1883 0.9569
1884 0.9569
1885 0.9569
1886 0.957
1887 0.957
1888 0.9569
1889 0.957
1890 0.9569
1891 0.9569
1892 0.957
1893 0.9569
1894 0.9569
1895 0.9569
1896 0.957
1897 0.9569
1898 0.9569
1899 0.957
1900 0.9569
1901 0.957
1902 0.9569
1903 0.9569
1904 0.957
1905 0.9569
1906 0.957
1907 0.957
1908 0.9569
1909 0.9569
1910 0.9569
1911 0.9569
1912 0.9569
1913 0.9569
1914 1.241
1915 1.241
1916 1.241
1917 1.241
1918 1.241
1919 1.241
1920 1.241
1921 1.241
1922 1.241
1923 1.241
1924 1.241
1925 1.241
1926 1.241
1927 1.241
1928 1.241
1929 1.241
1930 1.241
1931 1.241
1932 1.241
1933 1.241
1934 1.241
1935 1.241
1936 1.241
1937 1.241
1938 1.241
1939 1.241
1940 1.241
1941 1.241
1942 1.241
1943 1.241
1944 1.241
1945 1.241
1946 1.241
1947 1.241
1948 1.241
1949 1.241
1950 1.241
1951 2.704
1952 2.722
1953 2.753
1954 2.796
1955 2.847
1956 2.903
1957 2.962
1958 3.023
1959 3.084
1960 3.146
1961 6.114
1962 6.311
1963 4.028
1964 8.557
1965 10.3
1966 5.888
1967 4.187
1968 4.543
1969 8.56
1970 11.25
1971 6.785
1972 6.211
1973 7.154
1974 3.231
1975 -0.287
1976 -2.821
1977 1.409
1978 9.122
1979 2.297
1980 -1.946
1981 -0.00377
1982 0.5386
1983 3.336
1984 -0.3069
1985 4
1986 4.647
1987 2.685
1988 2.797
1989 -1.539
1990 -3.129
1991 9.422
1992 13.73
1993 18.09
1994 5.846
1995 -3.394
1996 7.655
1997 -3.959
1998 -3.808
1999 1.833
2000 -2.497
2001 -0.1054
2002 -0.1204
2003 2.243
2004 2.859
2005 3.573
2006 2.388
2007 7.241
2008 6.69
2009 6.191
2010 7.371
2011 10.81
2012 7.845
2013 4.269