Year Total
1801 0.1827
1802 0.1827
1803 0.1827
1804 0.1827
1805 0.1827
1806 0.1827
1807 0.1827
1808 0.1827
1809 0.1827
1810 0.1827
1811 0.1827
1812 0.1827
1813 0.1827
1814 0.1827
1815 0.1827
1816 0.1827
1817 0.1827
1818 0.1827
1819 0.1827
1820 0.1827
1821 1.294
1822 1.294
1823 1.294
1824 1.294
1825 1.294
1826 1.294
1827 1.294
1828 1.294
1829 1.294
1830 1.294
1831 1.294
1832 1.294
1833 1.295
1834 1.294
1835 1.294
1836 1.294
1837 1.294
1838 1.294
1839 1.295
1840 1.294
1841 1.294
1842 1.294
1843 1.294
1844 1.294
1845 1.294
1846 1.294
1847 1.294
1848 1.294
1849 1.294
1850 1.294
1851 1.294
1852 1.294
1853 1.294
1854 1.294
1855 1.294
1856 1.294
1857 1.294
1858 1.294
1859 1.294
1860 1.294
1861 1.294
1862 1.294
1863 1.294
1864 1.294
1865 1.294
1866 1.294
1867 1.294
1868 1.294
1869 1.294
1870 1.294
1871 1.294
1872 1.294
1873 1.294
1874 1.294
1875 1.294
1876 1.294
1877 1.294
1878 1.294
1879 1.294
1880 1.294
1881 1.294
1882 1.294
1883 1.294
1884 1.294
1885 1.294
1886 1.294
1887 1.294
1888 1.294
1889 1.294
1890 1.294
1891 1.294
1892 1.294
1893 1.294
1894 1.294
1895 1.294
1896 1.294
1897 1.294
1898 1.294
1899 1.294
1900 1.294
1901 1.294
1902 1.294
1903 1.294
1904 1.294
1905 1.294
1906 1.294
1907 1.294
1908 1.294
1909 1.294
1910 1.294
1911 1.294
1912 1.294
1913 1.294
1914 1.294
1915 1.294
1916 1.294
1917 1.294
1918 1.294
1919 1.294
1920 1.294
1921 1.294
1922 1.294
1923 1.294
1924 1.294
1925 1.294
1926 1.294
1927 0.6524
1928 0.6522
1929 0.6525
1930 0.6523
1931 0.6523
1932 0.6524
1933 0.6522
1934 0.6524
1935 0.6524
1936 -0.2289
1937 -0.2286
1938 -0.229
1939 -0.2287
1940 -0.2288
1941 -0.2288
1942 -0.2287
1943 -0.2288
1944 -0.2287
1945 -0.2288
1946 -0.2287
1947 -0.2288
1948 -0.2287
1949 -0.2288
1950 -0.2289
1951 1.334
1952 1.383
1953 1.443
1954 1.511
1955 1.583
1956 1.656
1957 1.727
1958 1.793
1959 1.853
1960 1.905
1961 1.952
1962 1.995
1963 2.038
1964 2.082
1965 2.123
1966 2.09
1967 2.037
1968 2.076
1969 2.238
1970 2.439
1971 2.792
1972 3.004
1973 2.659
1974 3.867
1975 2.416
1976 0.7068
1977 -0.742
1978 -1.4
1979 -0.8069
1980 0.8197
1981 2.928
1982 4.722
1983 5.866
1984 6.065
1985 5.644
1986 5.062
1987 4.692
1988 4.56
1989 4.774
1990 5.176
1991 10.65
1992 10.33
1993 10.11
1994 9.931
1995 9.65
1996 11.2
1997 4.66
1998 -1.679
1999 -35.35
2000 13.87
2001 17.05
2002 -5.83
2003 -1.151
2004 1.338
2005 8.702
2006 -3.545
2007 10.56
2008 13.23
2009 11.54
2010 8.751
2011 11.7
2012 9.211
2013 8.56