Year	Number
1800	-6
1801	-6
1802	-6
1803	-6
1804	-6
1805	-6
1806	-6
1807	-6
1808	-6
1809	-6
1810	-6
1811	-6
1812	-6
1813	-6
1814	-6
1815	-6
1816	-6
1817	-6
1818	-6
1819	-6
1820	-6
1821	-6
1822	-6
1823	-6
1824	-6
1825	-6
1826	-6
1827	-6
1828	-6
1829	-6
1830	-6
1831	-6
1832	-6
1833	-6
1834	-6
1835	-6
1836	-6
1837	-6
1838	-6
1839	-6
1840	-6
1841	-6
1842	-6
1843	-6
1844	-6
1845	-6
1846	-6
1847	-6
1848	-6
1849	-6
1850	-6
1851	-6
1852	-6
1853	-6
1854	-6
1855	-6
1856	-6
1857	-6
1858	-6
1859	-6
1860	-6
1861	-6
1862	-6
1863	-6
1864	-6
1865	-6
1866	-6
1867	-6
1868	-6
1869	-6
1870	-6
1871	-6
1872	-6
1873	-6
1874	-6
1875	-6
1876	-6
1877	-6
1878	-6
1879	-6
1880	-6
1881	-6
1882	-6
1883	-6
1884	-6
1885	-6
1886	-6
1887	-6
1888	-6
1889	-6
1890	-6
1891	-6
1892	-6
1893	-6
1894	-6
1895	-6
1896	-6
1897	-6
1898	-6
1899	-6
1900	-6
1901	-6
1902	-6
1903	-6
1904	-6
1905	-6
1906	-6
1907	-6
1908	-6
1909	-6
1910	-6
1911	-6
1912	-6
1913	-6
1914	-6
1915	-6
1916	-6
1917	-6
1918	-6
1919	-6
1920	-6
1921	-6
1922	-6
1923	-6
1924	-6
1925	-6
1926	-6
1927	-6
1928	-6
1929	-6
1930	-6
1931	-6
1932	-6
1933	-6
1934	-6
1935	-6
1936	-6
1937	-6
1938	-6
1939	-6
1940	-6
1941	-6
1942	-6
1943	-6
1944	-6
1945	-6
1946	-6
1947	-6
1948	-6
1949	-6
1950	-6
1951	-6
1952	-6
1953	-6
1954	-6
1955	-6
1956	-6
1957	-10
1958	-10
1959	-10
1960	-10
1961	-10
1962	-10
1963	-10
1964	-10
1965	-10
1966	-10
1967	-10
1968	-10
1969	-10
1970	-10
1971	-10
1972	-10
1973	-10
1974	-10
1975	-10
1976	-10
1977	-10
1978	-10
1979	-10
1980	-10
1981	-10
1982	-10
1983	-10
1984	-10
1985	-10
1986	-10
1987	-10
1988	-10
1989	-10
1990	-10
1991	-9
1992	-9
1993	-9
1994	-9
1995	-9
1996	-9
1997	-9
1998	-9
1999	-9
2000	-9
2001	-9
2002	-8
2003	-8
2004	-8
2005	-8
2006	-8
2007	-8
2008	-8
2009	-8
2010	-8
2011	-8