Year Total
1801 0.1659
1802 0.1659
1803 0.1659
1804 0.1659
1805 0.1659
1806 0.1659
1807 0.1659
1808 0.1659
1809 0.1659
1810 0.1659
1811 0.1659
1812 0.1659
1813 0.1659
1814 0.1659
1815 0.1659
1816 0.1659
1817 0.1659
1818 0.1659
1819 0.1659
1820 0.1659
1821 1.833
1822 1.834
1823 1.835
1824 1.831
1825 1.832
1826 1.837
1827 1.833
1828 1.834
1829 1.829
1830 1.835
1831 1.836
1832 1.831
1833 1.832
1834 1.837
1835 1.833
1836 1.833
1837 1.834
1838 1.829
1839 1.834
1840 1.835
1841 1.835
1842 1.831
1843 1.835
1844 1.831
1845 1.836
1846 1.831
1847 1.832
1848 1.836
1849 1.832
1850 1.832
1851 1.836
1852 1.832
1853 1.836
1854 1.832
1855 1.832
1856 1.836
1857 1.831
1858 1.835
1859 1.831
1860 1.835
1861 1.835
1862 1.834
1863 1.83
1864 1.834
1865 1.833
1866 1.837
1867 1.832
1868 1.832
1869 1.835
1870 1.831
1871 1.834
1872 1.834
1873 1.833
1874 1.833
1875 1.836
1876 1.831
1877 1.834
1878 1.834
1879 1.833
1880 1.832
1881 1.835
1882 1.834
1883 1.833
1884 1.832
1885 1.832
1886 1.834
1887 1.833
1888 1.836
1889 1.831
1890 1.834
1891 1.833
1892 1.835
1893 1.831
1894 1.833
1895 1.835
1896 1.834
1897 1.833
1898 1.832
1899 1.834
1900 1.833
1901 1.835
1902 1.833
1903 1.832
1904 1.834
1905 1.833
1906 1.834
1907 1.833
1908 1.832
1909 1.833
1910 1.835
1911 1.834
1912 1.832
1913 1.834
1914 3.873
1915 3.875
1916 3.876
1917 3.874
1918 3.873
1919 3.874
1920 3.875
1921 3.874
1922 3.875
1923 3.873
1924 3.874
1925 3.875
1926 3.874
1927 3.875
1928 3.876
1929 3.874
1930 3.875
1931 3.873
1932 3.876
1933 3.872
1934 3.875
1935 3.876
1936 3.874
1937 3.875
1938 3.873
1939 3.876
1940 3.874
1941 3.874
1942 3.873
1943 3.875
1944 3.873
1945 3.876
1946 3.874
1947 3.874
1948 3.875
1949 3.873
1950 3.875
1951 3.634
1952 3.628
1953 3.592
1954 3.517
1955 3.477
1956 3.461
1957 3.476
1958 3.526
1959 3.594
1960 3.65
1961 3.829
1962 4.618
1963 4.746
1964 4.804
1965 4.767
1966 4.655
1967 4.596
1968 4.467
1969 4.386
1970 4.357
1971 4.116
1972 2.197
1973 2.102
1974 2.019
1975 1.95
1976 1.912
1977 3.159
1978 3.169
1979 3.182
1980 3.184
1981 3.41
1982 6.777
1983 6.776
1984 6.777
1985 6.776
1986 12.22
1987 4.137
1988 4.18
1989 4.178
1990 4.179
1991 0.2026
1992 2.773
1993 2.729
1994 2.673
1995 2.622
1996 2.591
1997 4.195
1998 4.179
1999 4.169
2000 4.159
2001 4.138
2002 1.685
2003 1.661
2004 1.632
2005 1.606
2006 1.58