Year Total
1801 0.07321
1802 0.07321
1803 0.07321
1804 0.07321
1805 0.07321
1806 0.07321
1807 0.07321
1808 0.07321
1809 0.07321
1810 0.07321
1811 0.07321
1812 0.07321
1813 0.07321
1814 0.07321
1815 0.07321
1816 0.07321
1817 0.07321
1818 0.07321
1819 0.07321
1820 0.07321
1821 0.3643
1822 0.3635
1823 0.3682
1824 0.3618
1825 0.3665
1826 0.3656
1827 0.3648
1828 0.3639
1829 0.3686
1830 0.3622
1831 0.3668
1832 0.366
1833 0.3651
1834 0.3643
1835 0.3634
1836 0.3626
1837 0.3671
1838 0.3662
1839 0.3654
1840 0.3645
1841 0.3637
1842 0.3628
1843 0.3673
1844 0.3664
1845 0.3655
1846 0.3647
1847 0.3638
1848 0.363
1849 0.3673
1850 0.3665
1851 0.3605
1852 0.3648
1853 0.369
1854 0.3631
1855 0.3673
1856 0.3614
1857 0.3656
1858 0.3647
1859 0.3639
1860 0.3681
1861 0.3622
1862 0.3663
1863 0.3655
1864 0.3646
1865 0.3638
1866 0.3679
1867 0.3621
1868 0.3661
1869 0.3653
1870 0.3644
1871 0.3636
1872 0.3676
1873 0.3619
1874 0.3659
1875 0.365
1876 0.3642
1877 0.3681
1878 0.3625
1879 0.3664
1880 0.3655
1881 0.3647
1882 0.3638
1883 0.3676
1884 0.3621
1885 0.3659
1886 0.3651
1887 0.3642
1888 0.368
1889 0.3625
1890 0.3663
1891 0.3654
1892 0.3646
1893 0.3637
1894 0.3674
1895 0.362
1896 0.3657
1897 0.3649
1898 0.364
1899 0.3676
1900 0.3623
1901 0.3659
1902 0.3651
1903 0.3642
1904 0.3678
1905 0.3625
1906 0.3661
1907 0.3652
1908 0.3644
1909 0.3635
1910 0.367
1911 0.3661
1912 0.3653
1913 0.3644
1914 3.167
1915 3.167
1916 3.17
1917 3.169
1918 3.168
1919 3.172
1920 3.167
1921 3.17
1922 3.169
1923 3.168
1924 3.167
1925 3.171
1926 3.17
1927 3.169
1928 3.168
1929 3.167
1930 3.171
1931 3.166
1932 3.169
1933 3.172
1934 3.167
1935 3.17
1936 3.17
1937 3.169
1938 3.168
1939 3.167
1940 3.17
1941 3.169
1942 3.168
1943 3.168
1944 3.171
1945 3.17
1946 3.169
1947 3.168
1948 3.167
1949 3.17
1950 3.169
1951 4.966
1952 4.901
1953 4.945
1954 5.067
1955 5.214
1956 5.378
1957 5.527
1958 5.636
1959 5.692
1960 5.706
1961 5.692
1962 5.693
1963 5.727
1964 5.813
1965 5.927
1966 6.061
1967 6.142
1968 6.084
1969 5.858
1970 5.536
1971 -2.291
1972 12.08
1973 20.92
1974 45.29
1975 5.348
1976 -26.77
1977 -4.618
1978 1.06
1979 -11.59
1980 -44.44
1981 -3.474
1982 10.15
1983 -9.806
1984 7.729
1985 -4.614
1986 1.546
1987 -3.057
1988 18.24
1989 -8.565
1990 2.138
1991 -4.304
1992 3.178
1993 3.465
1994 4.895
1995 -0.9491
1996 6.167
1997 5.642
1998 11.07
1999 0.2247
2000 9.578
2001 0.7566
2002 0.6186
2003 4.068
2004 3.209
2005 -0.1385
2006 -4.471
2007 7.557
2008 2.789
2009 -0.6354
2010 -0.4791
2011 2.752
2012 2.356
2013 2.446