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 0.6608 1822 0.6608 1823 0.6608 1824 0.6608 1825 0.6608 1826 0.6608 1827 0.6608 1828 0.6608 1829 0.6608 1830 0.6608 1831 0.6608 1832 0.6608 1833 0.6608 1834 0.6608 1835 0.6608 1836 0.6608 1837 0.6608 1838 0.6608 1839 0.6608 1840 0.6608 1841 0.6608 1842 0.6608 1843 0.6608 1844 0.6608 1845 0.6608 1846 0.6608 1847 0.6608 1848 0.6608 1849 0.6608 1850 0.6608 1851 0.6608 1852 0.6608 1853 0.6608 1854 0.6608 1855 0.6608 1856 0.6608 1857 0.6608 1858 0.6608 1859 0.6608 1860 0.6608 1861 0.6608 1862 0.6608 1863 0.6608 1864 0.6608 1865 0.6608 1866 0.6608 1867 0.6608 1868 0.6608 1869 0.6608 1870 0.6608 1871 0.6608 1872 -1.668 1873 -1.677 1874 -1.67 1875 -1.676 1876 -1.666 1877 -1.67 1878 -1.674 1879 -1.676 1880 -1.659 1881 -1.677 1882 -0.7637 1883 -0.7456 1884 -0.7655 1885 -0.7464 1886 -0.7462 1887 -0.7662 1888 -0.7453 1889 -0.7652 1890 -0.7432 1891 -0.7631 1892 1.295 1893 1.291 1894 1.309 1895 1.305 1896 1.301 1897 1.297 1898 1.293 1899 1.289 1900 1.306 1901 1.302 1902 2.017 1903 2.019 1904 2.001 1905 2.023 1906 2.004 1907 2.025 1908 2.007 1909 2.008 1910 2.027 1911 2.009 1912 -0.2739 1913 -0.2827 1914 1.217 1915 1.208 1916 1.218 1917 1.209 1918 1.22 1919 1.211 1920 1.222 1921 1.213 1922 3.167 1923 3.157 1924 3.167 1925 3.158 1926 3.167 1927 3.158 1928 3.148 1929 3.176 1930 3.148 1931 3.175 1932 3.147 1933 3.174 1934 3.164 1935 3.154 1936 3.162 1937 3.153 1938 3.177 1939 3.15 1940 3.158 1941 3.165 1942 3.172 1943 3.162 1944 3.152 1945 3.159 1946 3.165 1947 5.67 1948 5.691 1949 5.676 1950 5.673 1951 2.989 1952 2.805 1953 2.68 1954 2.664 1955 2.675 1956 2.765 1957 2.868 1958 3.074 1959 3.249 1960 3.508 1961 3.746 1962 3.973 1963 4.151 1964 4.307 1965 4.381 1966 4.474 1967 4.536 1968 4.493 1969 4.333 1970 4.118 1971 -9.928 1972 0.04887 1973 5.54 1974 9.757 1975 4.505 1976 -0.3561 1977 1.84 1978 7.653 1979 11.64 1980 14.05 1981 0.6342 1982 2.283 1983 5.856 1984 5.567 1985 1.365 1986 3.818 1987 14.68 1988 11.26 1989 8.638 1990 37 1991 36.06 1992 36.54 1993 38.44 1994 33.33 1995 34.79 1996 11.17 1997 10.51 1998 10.35 1999 9.568 2000 13.66 2001 3.808 2002 -3.493 2003 -7.152 2004 10.54 2005 9.142 2006 1.369 2007 0.7064 2008 1.514 2009 4.344 2010 4.451 2011 2.477