Year Total
1801 0.1711
1802 0.1711
1803 0.1711
1804 0.1711
1805 0.1711
1806 0.1711
1807 0.1711
1808 0.1711
1809 0.1711
1810 0.1711
1811 0.1711
1812 0.1711
1813 0.1711
1814 0.1711
1815 0.1711
1816 0.1711
1817 0.1711
1818 0.1711
1819 0.1711
1820 0.1711
1821 0.4241
1822 0.4241
1823 0.4241
1824 0.4241
1825 0.4241
1826 0.4241
1827 0.4241
1828 0.4241
1829 0.4241
1830 0.4241
1831 0.4241
1832 0.4241
1833 0.4241
1834 0.4241
1835 0.4241
1836 0.4241
1837 0.4241
1838 0.4241
1839 0.4241
1840 0.4241
1841 0.4241
1842 0.4241
1843 0.4241
1844 0.4241
1845 0.4241
1846 0.4241
1847 0.4241
1848 0.4241
1849 0.4241
1850 0.4241
1851 0.426
1852 0.426
1853 0.426
1854 0.426
1855 0.426
1856 0.426
1857 0.426
1858 0.426
1859 0.426
1860 0.426
1861 0.426
1862 0.426
1863 0.426
1864 0.426
1865 0.426
1866 0.426
1867 0.426
1868 0.426
1869 0.426
1870 0.426
1871 0.8172
1872 0.8172
1873 0.8172
1874 0.8172
1875 0.8172
1876 0.8172
1877 0.8172
1878 0.8172
1879 0.8172
1880 0.8172
1881 0.8172
1882 0.8172
1883 0.8172
1884 0.8172
1885 3.548
1886 -2.778
1887 4.978
1888 1.322
1889 -2.326
1890 5.074
1891 -8.823
1892 8.474
1893 2.955
1894 1.952
1895 -2.057
1896 -6.992
1897 18.76
1898 0.6173
1899 -7.408
1900 3.934
1901 2.037
1902 8.317
1903 1.395
1904 0.4458
1905 -1.839
1906 2.831
1907 -6.077
1908 1.412
1909 13.72
1910 0.1478
1911 -0.2625
1912 0.291
1913 -1.775
1914 5.886
1915 -2.033
1916 3.333
1917 -1.411
1918 -12.43
1919 14.28
1920 -7.545
1921 7.533
1922 3.694
1923 -3.763
1924 4.363
1925 0.672
1926 2.607
1927 -0.4783
1928 0.4955
1929 3.605
1930 0.5705
1931 -1.152
1932 0.5801
1933 -0.454
1934 0.3983
1935 -1.478
1936 3.323
1937 -2.16
1938 -0.2893
1939 1.658
1940 2.759
1941 1.507
1942 -1.762
1943 2.601
1944 -2.341
1945 -2.9
1946 -6.494
1947 -0.6771
1948 -0.1033
1949 1.196
1950 -5.061
1951 3.516
1952 4.155
1953 2.384
1954 2.556
1955 -4.729
1956 11.58
1957 -1.049
1958 -1.045
1959 6.251
1960 6.536
1961 6.509
1962 0.2968
1963 11.02
1964 1.961
1965 6.442
1966 2.522
1967 -0.9277
1968 10.54
1969 2.055
1970 4.607
1971 -5.537
1972 -13.02
1973 -0.9601
1974 11.05
1975 -1.875
1976 4.327
1977 0.4036
1978 7.149
1979 4.703
1980 0.7128
1981 3.258
1982 1.308
1983 5.129
1984 5.807
1985 3.564
1986 5.082
1987 4.985
1988 3.667
1989 3.214
1990 7.224
1991 3.879
1992 5.763
1993 5.257
1994 4.654
1995 5.425
1996 5.032
1997 5.679
1998 5.388
1999 4.917
2000 5.886
2001 5.115
2002 4.152
2003 4.861
2004 5.836
2005 5.276
2006 6.525
2007 6.305
2008 5.959
2009 5.91
2010 6.398
2011 6.659
2012 6.206
2013 6.036