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 1.914
1822 1.909
1823 1.904
1824 1.911
1825 1.918
1826 1.9
1827 1.92
1828 1.902
1829 1.909
1830 1.916
1831 1.911
1832 1.905
1833 1.912
1834 1.919
1835 1.901
1836 1.92
1837 1.903
1838 1.909
1839 1.915
1840 1.91
1841 1.915
1842 1.91
1843 1.905
1844 1.91
1845 1.916
1846 1.911
1847 1.905
1848 1.911
1849 1.916
1850 1.911
1851 1.905
1852 1.91
1853 1.915
1854 1.91
1855 1.905
1856 1.91
1857 1.914
1858 1.909
1859 1.913
1860 1.908
1861 1.912
1862 1.907
1863 1.911
1864 1.916
1865 1.91
1866 1.905
1867 1.909
1868 1.913
1869 1.908
1870 1.911
1871 1.915
1872 1.91
1873 1.913
1874 1.908
1875 1.911
1876 1.906
1877 1.909
1878 1.913
1879 1.916
1880 1.91
1881 1.905
1882 1.917
1883 1.903
1884 1.914
1885 1.909
1886 1.912
1887 1.914
1888 1.909
1889 1.912
1890 1.906
1891 1.909
1892 1.911
1893 1.914
1894 1.908
1895 1.911
1896 1.913
1897 1.907
1898 1.91
1899 1.912
1900 1.914
1901 1.908
1902 1.91
1903 1.912
1904 1.914
1905 1.908
1906 1.91
1907 1.912
1908 1.906
1909 1.915
1910 1.909
1911 1.911
1912 1.912
1913 1.907
1914 3.633
1915 3.641
1916 3.635
1917 3.63
1918 3.638
1919 3.632
1920 3.64
1921 3.634
1922 3.635
1923 3.636
1924 3.631
1925 3.638
1926 3.632
1927 3.639
1928 3.634
1929 3.634
1930 3.635
1931 3.636
1932 3.636
1933 3.636
1934 3.631
1935 3.637
1936 3.638
1937 3.632
1938 3.638
1939 3.633
1940 3.638
1941 3.633
1942 3.633
1943 3.638
1944 3.633
1945 3.638
1946 3.633
1947 3.633
1948 3.638
1949 3.633
1950 3.638
1951 2.207
1952 2.772
1953 3.337
1954 3.857
1955 4.292
1956 4.606
1957 4.757
1958 4.748
1959 4.566
1960 4.242
1961 3.853
1962 3.503
1963 3.275
1964 3.256
1965 3.368
1966 3.506
1967 3.605
1968 3.725
1969 3.834
1970 3.944
1971 5.639
1972 5.137
1973 7.149
1974 4.965
1975 -0.6005
1976 4.657
1977 3.652
1978 4.08
1979 3.864
1980 2.326
1981 1.893
1982 3.703
1983 2.603
1984 2.914
1985 3.061
1986 3.672
1987 3.628
1988 5.678
1989 5.175
1990 3.577
1991 1.857
1992 2.115
1993 -0.1946
1994 3.018
1995 3.023
1996 2.159
1997 3.395
1998 4.609
1999 4.108
2000 4.306
2001 1.771
2002 0.5552
2003 0.3686
2004 1.679
2005 1.019
2006 5.762
2007 14.45
2008 0.3601
2009 -11.58
2010 2.137
2011 1.698