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 0.8393
1822 0.8392
1823 0.8397
1824 0.8389
1825 0.8398
1826 0.8389
1827 0.8397
1828 0.8393
1829 0.8394
1830 0.8389
1831 0.8394
1832 0.8394
1833 0.8392
1834 0.8396
1835 0.8394
1836 0.8391
1837 0.8393
1838 0.8394
1839 0.8395
1840 0.839
1841 0.8395
1842 0.8394
1843 0.8393
1844 0.839
1845 0.8398
1846 0.839
1847 0.8396
1848 0.8392
1849 0.8392
1850 0.8392
1851 0.8396
1852 0.8394
1853 0.8392
1854 0.8394
1855 0.8391
1856 0.8396
1857 0.8392
1858 0.8392
1859 0.8395
1860 0.8394
1861 0.8392
1862 0.8394
1863 0.8391
1864 0.8396
1865 0.8392
1866 0.8396
1867 0.839
1868 0.8393
1869 0.8395
1870 0.8392
1871 0.8393
1872 0.8394
1873 0.8393
1874 0.8392
1875 0.8395
1876 0.8393
1877 0.8394
1878 0.8391
1879 0.8395
1880 0.8391
1881 0.8394
1882 0.8396
1883 0.839
1884 0.8395
1885 0.8392
1886 0.8395
1887 0.8391
1888 0.8393
1889 0.8395
1890 0.8393
1891 0.8393
1892 0.8393
1893 0.8393
1894 0.8395
1895 0.8393
1896 0.8394
1897 0.8391
1898 0.8394
1899 0.8394
1900 0.8392
1901 1.24
1902 1.24
1903 1.241
1904 1.24
1905 1.24
1906 1.24
1907 1.24
1908 1.24
1909 1.24
1910 1.24
1911 1.24
1912 1.241
1913 1.24
1914 1.24
1915 1.24
1916 1.24
1917 1.24
1918 1.24
1919 1.24
1920 1.24
1921 1.24
1922 1.24
1923 1.24
1924 1.24
1925 1.24
1926 1.24
1927 1.24
1928 1.24
1929 1.24
1930 1.24
1931 1.24
1932 1.24
1933 1.24
1934 1.24
1935 1.24
1936 1.24
1937 1.24
1938 1.24
1939 1.24
1940 1.24
1941 1.24
1942 1.24
1943 1.24
1944 1.24
1945 1.24
1946 1.24
1947 1.24
1948 1.24
1949 1.24
1950 1.24
1951 7.304
1952 7.434
1953 7.515
1954 7.56
1955 7.581
1956 7.589
1957 7.596
1958 7.613
1959 7.647
1960 7.699
1961 14.15
1962 14.23
1963 14.29
1964 14.33
1965 14.38
1966 -4.565
1967 20.26
1968 6.558
1969 12.61
1970 22.36
1971 25.89
1972 8.275
1973 37.43
1974 123.1
1975 1.253
1976 22.17
1977 -3.048
1978 11.65
1979 10.47
1980 15.69
1981 1.881
1982 -8.157
1983 10.39
1984 -1.538
1985 -7.762
1986 -19.4
1987 -7.756
1988 -5.663
1989 35.17
1990 -0.04925
1991 7.79
1992 -4.552
1993 -0.6185
1994 7.731
1995 2.824
1996 11.39
1997 -16.23
1998 -13.26
1999 11
2000 23.87
2001 -5.5
2002 -1.156
2003 9.629
2004 13.84
2005 36.66
2006 1.13
2007 1.565
2008 20.12
2009 -8.051
2010 25.1
2011 -7.357
2012 6.027
2013 6.389