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 0.7675
1822 0.7675
1823 0.7675
1824 0.7675
1825 0.7675
1826 0.7675
1827 0.7675
1828 0.7675
1829 0.7675
1830 0.7675
1831 0.7675
1832 0.7675
1833 0.7675
1834 0.7675
1835 0.7675
1836 0.7675
1837 0.7675
1838 0.7675
1839 0.7675
1840 0.7675
1841 0.7675
1842 0.7675
1843 0.7675
1844 0.7675
1845 0.7675
1846 0.7675
1847 0.7675
1848 0.7675
1849 0.7675
1850 0.7675
1851 0.7675
1852 0.7675
1853 0.7675
1854 0.7675
1855 0.7675
1856 0.7675
1857 0.7675
1858 0.7675
1859 0.7675
1860 0.7675
1861 0.7675
1862 0.7675
1863 0.7675
1864 0.7675
1865 0.7675
1866 0.7675
1867 0.7675
1868 0.7675
1869 0.7675
1870 0.7675
1871 0.7675
1872 0.7675
1873 0.7675
1874 0.7675
1875 0.7675
1876 0.7675
1877 0.7675
1878 0.7675
1879 0.7675
1880 0.7675
1881 0.7675
1882 0.7675
1883 0.7675
1884 0.7675
1885 0.7675
1886 0.7675
1887 0.7675
1888 0.7675
1889 0.7675
1890 0.7675
1891 0.7675
1892 0.7675
1893 0.7675
1894 0.7675
1895 0.7675
1896 0.7675
1897 0.7675
1898 0.7675
1899 0.7675
1900 0.7675
1901 0.7675
1902 0.7675
1903 0.7675
1904 0.7675
1905 0.7675
1906 0.7675
1907 0.7675
1908 0.7675
1909 0.7675
1910 0.7675
1911 0.7675
1912 0.7675
1913 0.7675
1914 1.21
1915 1.21
1916 1.21
1917 1.21
1918 1.21
1919 1.21
1920 1.21
1921 1.21
1922 1.21
1923 1.21
1924 1.21
1925 1.21
1926 1.21
1927 4.423
1928 4.423
1929 4.423
1930 4.423
1931 4.423
1932 2.33
1933 2.33
1934 2.33
1935 2.33
1936 2.33
1937 3.247
1938 3.247
1939 3.247
1940 3.247
1941 3.247
1942 3.247
1943 3.247
1944 3.247
1945 3.247
1946 3.247
1947 3.247
1948 3.247
1949 3.247
1950 3.247
1951 4.356
1952 4.288
1953 4.222
1954 4.247
1955 4.267
1956 4.199
1957 4.22
1958 4.241
1959 4.189
1960 3.274
1961 1.732
1962 3.618
1963 4.28
1964 4.145
1965 2.562
1966 5.234
1967 3.305
1968 7.074
1969 5.478
1970 3.542
1971 3.486
1972 4.834
1973 1.957
1974 4.97
1975 5.677
1976 2.249
1977 5.672
1978 5.461
1979 5.539
1980 9.714
1981 16.8
1982 7.982
1983 6.965
1984 7.643
1985 8.696
1986 6.97
1987 -5.082
1988 -4.569
1989 -8.978
1990 -1.688
1991 -3.85
1992 -3.128
1993 -3.233
1994 -2.544
1995 3.279
1996 4.933
1997 5.008
1998 4.897
1999 4.338
2000 4.206
2001 5.353
2002 6.53
2003 4.053
2004 3.82
2005 2.154
2006 2.669
2007 2.278
2008 3.05
2009 1.293
2010 3.029
2011 3.795
2012 4.262
2013 4.314