Year Total
1801 0.3579
1802 0.3578
1803 0.3579
1804 0.3578
1805 0.3578
1806 0.3579
1807 0.3578
1808 0.3579
1809 0.3578
1810 0.3579
1811 0.3578
1812 0.3578
1813 0.3579
1814 0.3578
1815 0.3579
1816 0.3579
1817 0.3579
1818 0.3579
1819 0.3579
1820 0.3578
1821 1.226
1822 1.226
1823 1.226
1824 1.226
1825 1.226
1826 1.226
1827 1.226
1828 1.226
1829 1.226
1830 1.226
1831 1.226
1832 1.226
1833 1.226
1834 1.226
1835 1.226
1836 1.226
1837 1.226
1838 1.226
1839 1.226
1840 1.226
1841 1.226
1842 1.226
1843 1.226
1844 1.226
1845 1.226
1846 1.226
1847 1.226
1848 1.226
1849 1.226
1850 1.226
1851 1.226
1852 1.226
1853 1.226
1854 1.226
1855 1.226
1856 1.226
1857 1.226
1858 1.226
1859 1.226
1860 1.226
1861 1.226
1862 1.226
1863 1.226
1864 1.226
1865 1.226
1866 1.226
1867 1.226
1868 1.226
1869 1.226
1870 1.226
1871 1.252
1872 1.252
1873 1.252
1874 1.252
1875 1.252
1876 1.252
1877 1.252
1878 1.252
1879 1.252
1880 1.252
1881 1.252
1882 1.252
1883 1.252
1884 1.252
1885 1.252
1886 1.252
1887 1.252
1888 1.252
1889 1.252
1890 1.252
1891 1.252
1892 1.252
1893 1.252
1894 1.252
1895 1.252
1896 1.252
1897 1.252
1898 1.252
1899 1.252
1900 1.252
1901 1.252
1902 1.252
1903 1.252
1904 1.252
1905 1.252
1906 1.252
1907 1.252
1908 1.252
1909 1.252
1910 1.252
1911 1.252
1912 1.252
1913 1.252
1914 3.514
1915 3.514
1916 3.514
1917 3.514
1918 3.514
1919 3.514
1920 3.514
1921 3.514
1922 3.514
1923 3.514
1924 3.514
1925 3.514
1926 3.514
1927 3.514
1928 3.514
1929 3.514
1930 3.514
1931 3.514
1932 3.514
1933 3.514
1934 3.514
1935 3.514
1936 3.514
1937 3.514
1938 3.514
1939 3.514
1940 3.514
1941 3.514
1942 3.514
1943 3.514
1944 3.514
1945 3.514
1946 3.514
1947 3.514
1948 3.514
1949 3.514
1950 3.514
1951 2.585
1952 2.55
1953 3.099
1954 3.111
1955 3.128
1956 0.5201
1957 0.5525
1958 0.5793
1959 0.5599
1960 0.5505
1961 3.752
1962 3.734
1963 3.721
1964 3.749
1965 3.809
1966 5.958
1967 5.998
1968 5.968
1969 5.866
1970 5.744
1971 5.654
1972 2.78
1973 3.997
1974 5.846
1975 7.124
1976 11.47
1977 5.385
1978 3.409
1979 5.148
1980 9.851
1981 -1.979
1982 10.64
1983 -0.5568
1984 4.131
1985 6.12
1986 7.604
1987 -2.517
1988 9.87
1989 1.907
1990 3.373
1991 6.464
1992 -4.418
1993 -1.461
1994 9.865
1995 -7.06
1996 11.64
1997 -2.831
1998 7.287
1999 -0.6299
2000 0.4553
2001 5.705
2002 2.601
2003 5.475
2004 4.586
2005 1.822
2006 7.666
2007 2.613
2008 5.494
2009 4.674
2010 3.574
2011 4.935
2012 2.662
2013 4.527