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 0.8032
1822 0.8032
1823 0.8032
1824 0.8032
1825 0.8031
1826 0.8032
1827 0.8032
1828 0.8032
1829 0.8032
1830 0.8031
1831 0.8032
1832 0.8031
1833 0.8032
1834 0.8032
1835 0.8032
1836 0.8032
1837 0.8032
1838 0.8031
1839 0.8032
1840 0.8032
1841 0.8032
1842 0.8032
1843 0.8032
1844 0.8032
1845 0.8032
1846 0.8032
1847 0.8032
1848 0.8032
1849 0.8032
1850 0.8032
1851 0.8032
1852 0.8032
1853 0.8032
1854 0.8032
1855 0.8032
1856 0.8032
1857 0.8032
1858 0.8031
1859 0.8032
1860 0.8032
1861 0.8032
1862 0.8032
1863 0.8032
1864 0.8032
1865 0.8031
1866 0.8032
1867 0.8032
1868 0.8031
1869 0.8032
1870 0.8032
1871 0.8032
1872 0.8032
1873 0.8032
1874 0.8032
1875 0.8032
1876 0.8032
1877 0.8032
1878 0.8031
1879 0.8032
1880 0.8032
1881 0.8032
1882 0.8032
1883 0.8032
1884 0.8032
1885 0.8032
1886 0.8032
1887 0.8032
1888 0.8032
1889 0.8032
1890 0.8032
1891 0.8032
1892 0.8032
1893 0.8032
1894 0.8032
1895 0.8032
1896 0.8032
1897 0.8032
1898 0.8032
1899 0.8032
1900 0.8032
1901 0.8032
1902 0.8032
1903 0.8032
1904 0.8032
1905 0.8032
1906 0.8032
1907 0.8032
1908 0.8032
1909 0.8031
1910 0.8032
1911 0.8032
1912 0.7412
1913 0.7412
1914 0.446
1915 0.446
1916 0.446
1917 0.446
1918 0.446
1919 0.446
1920 0.446
1921 0.446
1922 2.159
1923 2.159
1924 2.159
1925 2.159
1926 2.159
1927 2.159
1928 2.159
1929 2.159
1930 2.159
1931 2.159
1932 2.157
1933 2.157
1934 2.157
1935 2.157
1936 2.157
1937 2.157
1938 2.157
1939 2.157
1940 2.157
1941 2.157
1942 2.157
1943 2.157
1944 2.157
1945 2.157
1946 2.157
1947 2.157
1948 2.157
1949 2.167
1950 2.167
1951 -3.835
1952 6.301
1953 4.371
1954 -1.507
1955 6.438
1956 5.417
1957 4.24
1958 0.6469
1959 5.182
1960 4.978
1961 -0.7053
1962 4.507
1963 11.98
1964 8.122
1965 2.672
1966 6.684
1967 5.796
1968 2.895
1969 11.27
1970 1.706
1971 3.35
1972 1.466
1973 0.2997
1974 0.7511
1975 -1.705
1976 1.156
1977 1.992
1978 -5.033
1979 -10.38
1980 -2.576
1981 4.475
1982 8.577
1983 7.583
1984 -8.558
1985 2.004
1986 0.4283
1987 6.165
1988 6.922
1989 7.148
1990 4.079
1991 1.089
1992 3.089
1993 8.129
1994 6.105
1995 12.41
1996 9.07
1997 5.288
1998 4.794
1999 7.4
2000 4.943
2001 4.98
2002 6.834
2003 4.385
2004 5.739
2005 6.673
2006 9.497
2007 8.546
2008 7.679
2009 7.075
2010 5.567
2011 6.68
2012 2.698
2013 5.918