Year Total
1801 0.1322
1802 0.1323
1803 0.1322
1804 0.1321
1805 0.1323
1806 0.1322
1807 0.1323
1808 0.1322
1809 0.1321
1810 0.1323
1811 0.1322
1812 0.1323
1813 0.1322
1814 0.1322
1815 0.1321
1816 0.1323
1817 0.1322
1818 0.1323
1819 0.1322
1820 0.1322
1821 0.9165
1822 0.9165
1823 0.9165
1824 0.9166
1825 0.9165
1826 0.9166
1827 0.9166
1828 0.9165
1829 0.9166
1830 0.9166
1831 0.9166
1832 0.9166
1833 0.9166
1834 0.9166
1835 0.9166
1836 0.9165
1837 0.9166
1838 0.9165
1839 0.9166
1840 0.9165
1841 0.9166
1842 0.9165
1843 0.9165
1844 0.9166
1845 0.9165
1846 0.9166
1847 0.9165
1848 0.9166
1849 0.9165
1850 0.9166
1851 0.9166
1852 0.9166
1853 0.9166
1854 0.9166
1855 0.9165
1856 0.9166
1857 0.9166
1858 0.9165
1859 0.9166
1860 0.9166
1861 0.9166
1862 0.9166
1863 0.9166
1864 0.9166
1865 0.9166
1866 0.9165
1867 0.9166
1868 0.9165
1869 0.9166
1870 0.9165
1871 0.9165
1872 0.9166
1873 0.9165
1874 0.9166
1875 0.9165
1876 0.9166
1877 0.9166
1878 0.9165
1879 0.9166
1880 0.9166
1881 0.9166
1882 0.9166
1883 0.9166
1884 0.9166
1885 0.9165
1886 0.9166
1887 0.9166
1888 0.9166
1889 0.9166
1890 0.9165
1891 0.9166
1892 0.9165
1893 0.9166
1894 0.9165
1895 0.9166
1896 0.9165
1897 0.9166
1898 0.9166
1899 0.9165
1900 0.9166
1901 0.9166
1902 0.9166
1903 0.9166
1904 0.9166
1905 0.9166
1906 0.9166
1907 0.9166
1908 0.9166
1909 0.9165
1910 0.9166
1911 0.9166
1912 0.9166
1913 0.9166
1914 2.443
1915 2.443
1916 2.443
1917 2.443
1918 2.443
1919 2.443
1920 2.443
1921 2.443
1922 2.443
1923 2.443
1924 2.443
1925 2.443
1926 2.443
1927 2.443
1928 2.443
1929 2.443
1930 2.443
1931 2.443
1932 2.443
1933 2.443
1934 2.443
1935 2.443
1936 2.443
1937 2.443
1938 2.443
1939 2.443
1940 2.443
1941 2.443
1942 2.443
1943 2.443
1944 2.443
1945 2.443
1946 2.443
1947 2.443
1948 2.443
1949 2.443
1950 2.443
1951 4.102
1952 4.378
1953 4.225
1954 4.41
1955 4.464
1956 10.15
1957 -1.73
1958 3.731
1959 11.46
1960 1.479
1961 -0.3643
1962 6.566
1963 -3.195
1964 -1.315
1965 6.769
1966 -1.475
1967 -3.372
1968 5.921
1969 6.06
1970 -4.322
1971 6.893
1972 -2.089
1973 -8.485
1974 10.12
1975 12.72
1976 18.36
1977 15.13
1978 -1.895
1979 -10.85
1980 0.6144
1981 2.125
1982 12.7
1983 -1.219
1984 -5.452
1985 -7.309
1986 3.507
1987 2.321
1988 1.361
1989 7.765
1990 -8.61
1991 6.418
1992 4.945
1993 2.847
1994 1.876
1995 2.962
1996 5.097
1997 9.866
1998 5.612
1999 7.25
2000 9.204
2001 5.615
2002 5.512
2003 6.629
2004 4.728
2005 8.349
2006 9.952
2007 11.46
2008 3.13
2009 5.919
2010 7.242
2011 24.11
2012 -47.55
2013 24.4