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 0.8035
1822 0.8037
1823 0.8039
1824 0.8036
1825 0.8037
1826 0.8039
1827 0.8036
1828 0.8037
1829 0.8038
1830 0.8039
1831 0.8036
1832 0.8037
1833 0.8038
1834 0.8035
1835 0.8035
1836 0.8041
1837 0.8037
1838 0.8037
1839 0.8034
1840 0.8039
1841 0.8035
1842 0.8039
1843 0.8035
1844 0.804
1845 0.8036
1846 0.8036
1847 0.804
1848 0.8036
1849 0.8036
1850 0.8039
1851 0.8035
1852 0.8039
1853 0.8034
1854 0.8038
1855 0.8037
1856 0.8037
1857 0.8036
1858 0.8039
1859 0.8035
1860 0.8038
1861 0.8037
1862 0.8036
1863 0.8039
1864 0.8038
1865 0.8036
1866 0.8039
1867 0.8034
1868 0.804
1869 0.8035
1870 0.8037
1871 1.405
1872 1.405
1873 1.405
1874 1.405
1875 1.405
1876 1.405
1877 1.405
1878 1.405
1879 1.405
1880 1.405
1881 1.405
1882 1.405
1883 1.405
1884 1.405
1885 1.405
1886 1.405
1887 1.405
1888 1.405
1889 1.405
1890 1.405
1891 1.405
1892 1.405
1893 1.405
1894 1.405
1895 1.405
1896 1.405
1897 1.405
1898 1.405
1899 1.405
1900 1.405
1901 1.405
1902 1.405
1903 1.405
1904 1.405
1905 1.405
1906 1.405
1907 1.405
1908 1.405
1909 1.405
1910 1.405
1911 1.405
1912 1.405
1913 1.405
1914 2.084
1915 2.084
1916 2.084
1917 2.084
1918 2.084
1919 2.084
1920 2.084
1921 2.084
1922 2.084
1923 2.084
1924 2.084
1925 2.084
1926 2.084
1927 2.084
1928 2.084
1929 2.084
1930 2.084
1931 2.084
1932 2.084
1933 2.084
1934 2.084
1935 2.084
1936 2.084
1937 2.084
1938 2.084
1939 2.084
1940 2.084
1941 2.084
1942 2.084
1943 2.084
1944 2.084
1945 2.084
1946 2.084
1947 2.084
1948 2.084
1949 2.084
1950 2.084
1951 14.41
1952 9.817
1953 8.042
1954 7.685
1955 -3.329
1956 40.7
1957 5.484
1958 13.03
1959 9.709
1960 7.453
1961 20.37
1962 1.262
1963 5.117
1964 18.16
1965 13.82
1966 6.555
1967 6.287
1968 -4.776
1969 11.95
1970 -7.996
1971 3.837
1972 3.679
1973 4.881
1974 8.096
1975 6.026
1976 23.15
1977 5.444
1978 19.92
1979 8.441
1980 18.02
1981 4.199
1982 7.294
1983 2.292
1984 9.03
1985 3.802
1986 9.222
1987 2.849
1988 -0.7121
1989 -10.01
1990 -3.174
1991 -3.139
1992 16.14
1993 8.451
1994 7.486
1995 7.417
1996 1.174
1997 1.492
1998 1.056
1999 1.534
2000 2.66
2001 3.891
2002 4.575
2003 3.277
2004 8.037
2005 6.973
2006 8.67
2007 9.17
2008 8.264
2009 6.3
2010 2.77
2011 2.603
2012 2.361
2013 2.74