Year Total
1801 0.4253
1802 0.4253
1803 0.4253
1804 0.4253
1805 0.4253
1806 0.4253
1807 0.4253
1808 0.4253
1809 0.4253
1810 0.4253
1811 0.4253
1812 0.4253
1813 0.4253
1814 0.4253
1815 0.4253
1816 0.4253
1817 0.4253
1818 0.4253
1819 0.4253
1820 0.4253
1821 1.156
1822 1.156
1823 1.155
1824 1.155
1825 1.156
1826 1.155
1827 1.156
1828 1.155
1829 1.156
1830 1.156
1831 1.155
1832 1.155
1833 1.156
1834 1.155
1835 1.155
1836 1.156
1837 1.155
1838 1.156
1839 1.155
1840 1.155
1841 1.156
1842 1.155
1843 1.156
1844 1.155
1845 1.156
1846 1.155
1847 1.156
1848 1.156
1849 1.155
1850 1.156
1851 1.155
1852 1.156
1853 1.156
1854 1.155
1855 1.155
1856 1.156
1857 1.155
1858 1.155
1859 1.156
1860 1.155
1861 1.156
1862 1.156
1863 1.155
1864 1.156
1865 1.155
1866 1.156
1867 1.155
1868 1.156
1869 1.156
1870 1.155
1871 1.156
1872 1.156
1873 1.156
1874 1.155
1875 1.156
1876 1.155
1877 1.155
1878 1.156
1879 1.155
1880 1.156
1881 1.155
1882 1.156
1883 1.156
1884 1.155
1885 1.155
1886 1.156
1887 1.155
1888 1.155
1889 1.156
1890 1.156
1891 1.155
1892 1.156
1893 1.155
1894 1.156
1895 1.155
1896 1.156
1897 1.155
1898 1.155
1899 1.156
1900 1.156
1901 1.155
1902 1.156
1903 1.155
1904 1.155
1905 1.156
1906 1.156
1907 1.155
1908 1.156
1909 1.155
1910 1.156
1911 1.156
1912 1.156
1913 1.155
1914 3.707
1915 3.707
1916 3.707
1917 3.707
1918 3.707
1919 3.707
1920 3.707
1921 3.707
1922 3.707
1923 3.707
1924 3.707
1925 3.707
1926 3.707
1927 3.707
1928 3.707
1929 3.707
1930 3.707
1931 3.707
1932 3.707
1933 3.707
1934 3.707
1935 3.707
1936 3.707
1937 3.707
1938 3.707
1939 3.707
1940 3.707
1941 4.035
1942 4.035
1943 4.035
1944 4.035
1945 4.035
1946 4.035
1947 4.035
1948 4.035
1949 4.035
1950 4.035
1951 4.088
1952 4.189
1953 4.134
1954 -2.315
1955 8.382
1956 -1.593
1957 9.789
1958 5.455
1959 0.5278
1960 4.095
1961 13.46
1962 -2.591
1963 5.289
1964 11.34
1965 7.576
1966 5.817
1967 5.798
1968 -1.536
1969 2.958
1970 6.503
1971 6.006
1972 0.1686
1973 8.114
1974 3.145
1975 -5.042
1976 -5.246
1977 0.7383
1978 -5.296
1979 0.3166
1980 2.732
1981 -4.4
1982 0
1983 4.2
1984 6
1985 3.5
1986 3.176
1987 7
1988 5.573
1989 0.3875
1990 -0.4446
1991 0.9914
1992 -5.838
1993 -23.98
1994 1.339
1995 15
1996 20
1997 5.5
1998 0
1999 3.24
2000 3.012
2001 3.14
2002 14.53
2003 3.3
2004 11.2
2005 20.5
2006 18.6
2007 23.19
2008 13.82
2009 2.39
2010 3.45
2011 3.873
2012 4.957
2013 3.794