Year Total
1801 0.1043
1802 0.1043
1803 0.1043
1804 0.1043
1805 0.1043
1806 0.1043
1807 0.1043
1808 0.1043
1809 0.1043
1810 0.1043
1811 0.1043
1812 0.1043
1813 0.1043
1814 0.1043
1815 0.1043
1816 0.1043
1817 0.1043
1818 0.1043
1819 0.1043
1820 0.1043
1821 1.792
1822 1.792
1823 1.792
1824 1.792
1825 1.792
1826 1.792
1827 1.792
1828 1.792
1829 1.792
1830 1.792
1831 1.792
1832 1.792
1833 1.792
1834 1.792
1835 1.792
1836 1.792
1837 1.792
1838 1.792
1839 1.792
1840 1.792
1841 1.792
1842 1.792
1843 1.792
1844 1.792
1845 1.792
1846 1.792
1847 1.792
1848 1.792
1849 1.792
1850 1.792
1851 1.792
1852 1.792
1853 1.792
1854 1.792
1855 1.792
1856 1.792
1857 1.792
1858 1.792
1859 1.792
1860 1.792
1861 1.792
1862 1.792
1863 1.792
1864 1.792
1865 1.792
1866 1.792
1867 1.792
1868 1.792
1869 1.792
1870 1.792
1871 1.792
1872 1.792
1873 1.792
1874 1.792
1875 1.792
1876 1.792
1877 1.792
1878 1.792
1879 1.792
1880 1.792
1881 1.792
1882 1.792
1883 1.792
1884 1.792
1885 1.792
1886 1.792
1887 1.792
1888 1.792
1889 1.792
1890 1.792
1891 1.792
1892 1.792
1893 1.792
1894 1.792
1895 1.792
1896 1.792
1897 1.792
1898 1.792
1899 1.792
1900 1.792
1901 1.792
1902 1.792
1903 1.792
1904 1.792
1905 1.792
1906 1.792
1907 1.792
1908 1.792
1909 1.792
1910 1.792
1911 1.792
1912 1.792
1913 1.792
1914 2.77
1915 2.77
1916 2.77
1917 2.77
1918 2.77
1919 2.77
1920 2.77
1921 2.77
1922 2.77
1923 2.77
1924 2.77
1925 2.77
1926 2.77
1927 2.77
1928 2.77
1929 2.77
1930 2.77
1931 2.77
1932 2.77
1933 2.77
1934 2.77
1935 2.77
1936 2.77
1937 2.77
1938 2.77
1939 2.77
1940 2.77
1941 2.77
1942 2.77
1943 2.77
1944 2.77
1945 2.77
1946 2.77
1947 2.77
1948 2.77
1949 2.77
1950 2.77
1951 3.286
1952 3.586
1953 3.812
1954 3.988
1955 4.138
1956 4.285
1957 4.447
1958 4.638
1959 4.862
1960 5.104
1961 5.33
1962 5.493
1963 5.549
1964 5.483
1965 5.333
1966 5.167
1967 5.015
1968 4.853
1969 4.688
1970 4.527
1971 4.366
1972 4.216
1973 4.095
1974 1.842
1975 1.787
1976 1.735
1977 1.69
1978 1.679
1979 1.706
1980 1.756
1981 1.804
1982 1.835
1983 1.855
1984 1.859
1985 1.843
1986 1.849
1987 1.838
1988 1.731
1989 1.505
1990 1.214
1991 -8.299
1992 -14.03
1993 -14.83
1994 -19.39
1995 -5.343
1996 7.096
1997 10.23
1998 2.464
1999 3.848
2000 5.407
2001 4.916
2002 -0.874
2003 5.544
2004 5.903
2005 -0.9839
2006 2.789
2007 8.865
2008 7.721
2009 2.874
2010 -0.3662
2011 6.099
2012 -0.8709
2013 10.55