Year Total
1801 0
1802 0
1803 0
1804 0
1805 0
1806 0
1807 0
1808 0
1809 0
1810 0
1811 0
1812 0
1813 0
1814 0
1815 0
1816 0
1817 0
1818 0
1819 0
1820 0
1821 0.8876
1822 0.8877
1823 0.8876
1824 0.8876
1825 0.8877
1826 0.8878
1827 0.8876
1828 0.8876
1829 0.8879
1830 0.8874
1831 0.8877
1832 0.8877
1833 0.8877
1834 0.8877
1835 0.8875
1836 0.8877
1837 0.8877
1838 0.8877
1839 0.8876
1840 0.8876
1841 0.8878
1842 0.8875
1843 0.8877
1844 0.8879
1845 0.8875
1846 0.8877
1847 0.8876
1848 0.8877
1849 0.8876
1850 0.8878
1851 0.8876
1852 0.8875
1853 0.8879
1854 0.8875
1855 0.8878
1856 0.8877
1857 0.8877
1858 0.8876
1859 0.8876
1860 0.8877
1861 0.8877
1862 0.8877
1863 0.8875
1864 0.8878
1865 0.8876
1866 0.8878
1867 0.8876
1868 0.8878
1869 0.8875
1870 0.8877
1871 0.8877
1872 0.8877
1873 0.8876
1874 0.8876
1875 0.8877
1876 0.8876
1877 0.8878
1878 0.8877
1879 0.8876
1880 0.8877
1881 0.8876
1882 0.8877
1883 0.8876
1884 0.8877
1885 0.8878
1886 0.8876
1887 0.8877
1888 0.8877
1889 0.8876
1890 0.8878
1891 0.8876
1892 0.8877
1893 0.8877
1894 0.8877
1895 0.8877
1896 0.8877
1897 0.8876
1898 0.8876
1899 0.8878
1900 0.8876
1901 0.8877
1902 0.8876
1903 0.8878
1904 0.8875
1905 0.8878
1906 0.8876
1907 0.8877
1908 0.8877
1909 0.8876
1910 0.8877
1911 0.8876
1912 0.8877
1913 0.8877
1914 0.9471
1915 0.9471
1916 0.9472
1917 0.9472
1918 0.9472
1919 0.9472
1920 0.9472
1921 0.9472
1922 0.9472
1923 0.9472
1924 0.9472
1925 0.9471
1926 0.9472
1927 0.9472
1928 0.9471
1929 0.9472
1930 0.9472
1931 0.9471
1932 0.9472
1933 0.9473
1934 0.9472
1935 0.9472
1936 0.9471
1937 0.9472
1938 0.9472
1939 0.9472
1940 0.9472
1941 0.9473
1942 0.9471
1943 0.9473
1944 0.9471
1945 0.9472
1946 0.9472
1947 0.9472
1948 0.9472
1949 0.9471
1950 0.9472
1951 5.22
1952 5.264
1953 5.28
1954 5.363
1955 5.415
1956 5.442
1957 5.366
1958 5.281
1959 5.374
1960 9.622
1961 18.86
1962 -0.6767
1963 -4.719
1964 31.75
1965 15.51
1966 1.936
1967 4.859
1968 10.28
1969 -0.2866
1970 11.79
1971 2.242
1972 2.557
1973 -5.063
1974 11.59
1975 -5.308
1976 9.193
1977 -0.2396
1978 0.5374
1979 5.501
1980 4.741
1981 4.456
1982 -1.518
1983 5.341
1984 -6.94
1985 3.049
1986 5.703
1987 3.07
1988 3.632
1989 3.639
1990 -1.2
1991 2.487
1992 0.6789
1993 4.252
1994 4.068
1995 4.718
1996 6.385
1997 3.728
1998 3.716
1999 3.981
2000 4.967
2001 4.345
2002 4.067
2003 5.553
2004 5.113
2005 5.033
2006 11.48
2007 1.013
2008 3.503
2009 -1.209
2010 5.057
2011 3.842
2012 6.865
2013 6.499