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 0.9496 1822 0.9494 1823 0.9496 1824 0.9494 1825 0.9496 1826 0.9495 1827 0.9495 1828 0.9496 1829 0.9496 1830 0.9495 1831 0.9496 1832 0.9495 1833 0.9496 1834 0.9495 1835 0.9495 1836 0.9496 1837 0.9496 1838 0.9495 1839 0.9497 1840 0.9495 1841 0.9495 1842 0.9497 1843 0.9494 1844 0.9496 1845 0.9496 1846 0.9495 1847 0.9496 1848 0.9495 1849 0.9494 1850 0.9495 1851 0.9496 1852 0.9495 1853 0.9495 1854 0.9496 1855 0.9496 1856 0.9494 1857 0.9496 1858 0.9494 1859 0.9496 1860 0.9496 1861 0.9495 1862 0.9495 1863 0.9496 1864 0.9495 1865 0.9494 1866 0.9495 1867 0.9496 1868 0.9495 1869 0.9495 1870 0.9496 1871 0.9496 1872 0.9496 1873 0.9494 1874 0.9496 1875 0.9496 1876 0.9495 1877 0.9495 1878 0.9496 1879 0.9495 1880 0.9495 1881 0.9497 1882 0.9494 1883 0.9496 1884 0.9495 1885 0.9496 1886 0.9494 1887 0.9496 1888 0.9496 1889 0.9496 1890 0.9495 1891 0.9495 1892 0.9496 1893 0.9495 1894 0.9496 1895 0.9495 1896 0.9494 1897 0.9496 1898 0.9495 1899 0.9495 1900 0.9495 1901 0.9496 1902 0.9495 1903 0.9495 1904 0.9495 1905 0.9496 1906 0.9495 1907 0.9496 1908 0.9495 1909 0.9494 1910 0.9496 1911 0.9495 1912 0.9495 1913 0.9495 1914 2.254 1915 2.254 1916 2.254 1917 2.254 1918 2.254 1919 2.254 1920 2.254 1921 2.254 1922 2.254 1923 2.254 1924 2.254 1925 2.254 1926 2.254 1927 2.254 1928 2.254 1929 2.254 1930 2.254 1931 2.254 1932 2.254 1933 2.254 1934 2.254 1935 2.254 1936 2.254 1937 5.198 1938 5.198 1939 5.198 1940 5.198 1941 5.198 1942 5.198 1943 5.198 1944 5.198 1945 5.198 1946 5.198 1947 5.198 1948 5.198 1949 5.198 1950 5.198 1951 3.469 1952 3.38 1953 3.311 1954 3.349 1955 3.39 1956 3.35 1957 3.4 1958 3.447 1959 3.429 1960 0.6741 1961 3.635 1962 -2.737 1963 -0.3733 1964 1.561 1965 0.6274 1966 -0.6743 1967 3.949 1968 0.8903 1969 5.067 1970 4.206 1971 -3.341 1972 -2.435 1973 4.463 1974 -3.022 1975 1.372 1976 3.889 1977 7.787 1978 1.522 1979 -5.73 1980 -0.8941 1981 1.76 1982 2.194 1983 -5.696 1984 6.833 1985 0.7678 1986 1.91 1987 -2.664 1988 1.253 1989 3.021 1990 3.086 1991 -1.015 1992 -6.693 1993 -0.1379 1994 6.259 1995 5.468 1996 -7.28 1997 7.759 1998 3.812 1999 3.556 2000 1.723 2001 0.6104 2002 -0.3485 2003 -7.612 2004 1.488 2005 2.258 2006 4.498 2007 4.398 2008 1.905 2009 -0.04266 2010 2.464 2011 2.746 2012 4.13 2013 -36.03