Year	Number
1839	-3
1840	-3
1841	-3
1842	-3
1843	-3
1844	-3
1845	-3
1846	-3
1847	-3
1848	-3
1849	-3
1850	-1
1851	-1
1852	-1
1853	-1
1854	-3
1855	-3
1856	-3
1857	-3
1858	-3
1859	-3
1860	-3
1861	-3
1862	-3
1863	-3
1864	-3
1865	-3
1866	-3
1867	-3
1868	-3
1869	-3
1870	-3
1871	-2
1872	-2
1873	-1
1874	-1
1875	-1
1876	-5
1877	-5
1878	-5
1879	2
1880	2
1881	2
1882	2
1883	2
1884	2
1885	2
1886	2
1887	2
1888	2
1889	2
1890	2
1891	2
1892	2
1893	2
1894	2
1895	2
1896	-3
1897	-3
1898	2
1899	2
1900	-9
1901	-9
1902	-9
1903	-9
1904	-9
1905	-9
1906	-9
1907	-9
1908	-9
1909	-9
1910	-9
1911	-9
1912	-9
1913	-9
1914	-9
1915	-9
1916	-9
1917	-9
1918	-9
1919	-9
1920	-9
1921	2
1922	2
1923	2
1924	2
1925	2
1926	2
1927	2
1928	2
1929	2
1930	2
1931	-9
1932	-9
1933	-9
1934	-9
1935	-9
1936	-9
1937	-9
1938	-9
1939	-9
1940	-9
1941	-9
1942	-9
1943	-9
1944	5
1945	5
1946	5
1947	5
1948	5
1949	5
1950	2
1951	2
1952	2
1953	2
1954	-6
1955	-6
1956	-6
1957	-6
1958	-5
1959	-5
1960	-5
1961	-5
1962	-5
1963	-5
1964	-5
1965	-5
1966	3
1967	3
1968	3
1969	3
1970	1
1971	1
1972	1
1973	1
1974	-3
1975	-3
1976	-3
1977	-3
1978	-5
1979	-5
1980	-5
1981	-5
1982	-7
1983	-7
1984	-6
1985	-1
1986	3
1987	3
1988	3
1989	3
1990	3
1991	3
1992	3
1993	3
1994	3
1995	3
1996	8
1997	8
1998	8
1999	8
2000	8
2001	8
2002	8
2003	8
2004	8
2005	8
2006	8
2007	8
2008	8
2009	8
2010	8
2011	8