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 1.573
1822 1.573
1823 1.573
1824 1.573
1825 1.573
1826 1.573
1827 1.573
1828 1.573
1829 1.573
1830 1.573
1831 1.573
1832 1.573
1833 1.573
1834 1.572
1835 1.573
1836 1.573
1837 1.573
1838 1.573
1839 1.573
1840 1.573
1841 1.573
1842 1.573
1843 1.573
1844 1.573
1845 1.573
1846 1.573
1847 1.573
1848 1.573
1849 1.573
1850 1.573
1851 1.573
1852 1.573
1853 1.573
1854 1.573
1855 1.573
1856 1.573
1857 1.573
1858 1.573
1859 1.573
1860 1.573
1861 1.573
1862 1.573
1863 1.573
1864 1.573
1865 1.573
1866 1.573
1867 1.573
1868 1.573
1869 1.573
1870 1.573
1871 1.573
1872 1.573
1873 1.573
1874 1.573
1875 1.573
1876 1.573
1877 1.573
1878 1.573
1879 1.573
1880 1.573
1881 1.573
1882 1.573
1883 1.573
1884 1.573
1885 1.573
1886 1.573
1887 1.573
1888 1.573
1889 1.573
1890 1.573
1891 1.573
1892 1.573
1893 1.573
1894 1.573
1895 1.573
1896 1.573
1897 1.573
1898 1.573
1899 1.573
1900 1.573
1901 1.573
1902 1.573
1903 1.573
1904 1.573
1905 1.573
1906 1.573
1907 1.573
1908 1.573
1909 1.573
1910 1.573
1911 1.573
1912 1.573
1913 1.573
1914 1.794
1915 1.794
1916 1.794
1917 1.794
1918 1.794
1919 1.794
1920 1.794
1921 1.794
1922 1.794
1923 1.794
1924 1.794
1925 1.794
1926 1.794
1927 1.794
1928 1.794
1929 1.794
1930 1.794
1931 1.794
1932 1.794
1933 1.794
1934 1.794
1935 1.794
1936 1.794
1937 1.794
1938 1.794
1939 1.794
1940 1.794
1941 1.794
1942 1.794
1943 1.794
1944 1.794
1945 1.794
1946 1.794
1947 1.794
1948 1.794
1949 1.794
1950 1.794
1951 3.012
1952 3.122
1953 6.151
1954 0.4097
1955 5.838
1956 3.802
1957 -0.2458
1958 3.844
1959 3.277
1960 5.736
1961 4.297
1962 4.083
1963 4.373
1964 3.817
1965 6.757
1966 5.33
1967 6.898
1968 5.614
1969 3.887
1970 -1.326
1971 4.41
1972 4.089
1973 2.09
1974 0.314
1975 -3.866
1976 1.313
1977 1.479
1978 -4.102
1979 12.29
1980 3.29
1981 2.918
1982 0.6986
1983 7.147
1984 -3.03
1985 -12
1986 9.177
1987 13.44
1988 -0.00495
1989 -1.578
1990 0.6957
1991 11.16
1992 10.9
1993 12.89
1994 20.9
1995 2.292
1996 9.077
1997 7.801
1998 1.871
1999 0.0989
2000 -12.45
2001 8.669
2002 2.908
2003 -2.74
2004 1.363
2005 2.486
2006 -0.9395
2007 1.335
2008 -9.861
2009 3.796
2010 2.129
2011 8.62
2012 6.772
2013 1.04