Year Total
1801 0.3019
1802 0.3019
1803 0.3019
1804 0.3019
1805 0.3019
1806 0.3019
1807 0.3019
1808 0.3019
1809 0.3019
1810 0.3019
1811 0.3019
1812 0.3019
1813 0.3019
1814 0.3019
1815 0.3019
1816 0.3019
1817 0.3019
1818 0.3019
1819 0.3019
1820 0.3019
1821 1.075
1822 1.077
1823 1.071
1824 1.078
1825 1.072
1826 1.075
1827 1.077
1828 1.076
1829 1.074
1830 1.076
1831 1.074
1832 1.072
1833 1.079
1834 1.073
1835 1.075
1836 1.077
1837 1.074
1838 1.076
1839 1.074
1840 1.076
1841 1.074
1842 1.075
1843 1.077
1844 1.075
1845 1.076
1846 1.074
1847 1.075
1848 1.076
1849 1.074
1850 1.075
1851 1.076
1852 1.073
1853 1.078
1854 1.075
1855 1.073
1856 1.077
1857 1.074
1858 1.075
1859 1.076
1860 1.073
1861 1.077
1862 1.074
1863 1.075
1864 1.075
1865 1.075
1866 1.076
1867 1.076
1868 1.076
1869 1.073
1870 1.076
1871 1.073
1872 1.076
1873 1.073
1874 1.076
1875 1.076
1876 1.073
1877 1.076
1878 1.075
1879 1.075
1880 1.075
1881 1.074
1882 1.077
1883 1.074
1884 1.076
1885 1.075
1886 1.075
1887 1.074
1888 1.076
1889 1.075
1890 1.075
1891 1.074
1892 1.076
1893 1.075
1894 1.076
1895 1.075
1896 1.074
1897 1.076
1898 1.075
1899 1.076
1900 1.075
1901 1.074
1902 1.075
1903 1.076
1904 1.075
1905 1.076
1906 1.074
1907 1.075
1908 1.074
1909 1.077
1910 1.075
1911 1.074
1912 1.075
1913 1.075
1914 3.723
1915 3.724
1916 3.722
1917 3.723
1918 3.723
1919 3.723
1920 3.721
1921 3.724
1922 3.724
1923 3.722
1924 3.724
1925 3.722
1926 3.722
1927 3.724
1928 3.722
1929 3.723
1930 3.723
1931 3.723
1932 3.723
1933 3.722
1934 3.724
1935 3.721
1936 3.723
1937 3.722
1938 3.724
1939 3.723
1940 3.722
1941 3.723
1942 3.723
1943 3.722
1944 3.723
1945 3.724
1946 3.721
1947 3.724
1948 3.723
1949 3.723
1950 3.722
1951 5.495
1952 3.015
1953 3.883
1954 5.637
1955 3.277
1956 4.119
1957 4.259
1958 3.551
1959 7.328
1960 8.83
1961 6.559
1962 4.987
1963 7.743
1964 5.937
1965 6.646
1966 7.264
1967 6.663
1968 6.08
1969 6.404
1970 26.47
1971 9.853
1972 6.318
1973 7.929
1974 2.024
1975 7.56
1976 14.25
1977 -8.28
1978 5.383
1979 5.808
1980 4.537
1981 4.94
1982 2.878
1983 0.2756
1984 13.22
1985 2.378
1986 4.198
1987 5.341
1988 2.761
1989 0.4691
1990 1.314
1991 1.427
1992 -0.3751
1993 -4.688
1994 -1.683
1995 -2.905
1996 -3.407
1997 1.589
1998 2.43
1999 4.682
2000 2.478
2001 2.697
2002 2.575
2003 3.122
2004 2.393
2005 2.96
2006 3.84
2007 4.174
2008 4.908
2009 4.135
2010 2.588
2011 3.549
2012 3.916
2013 4.065