Year	Years
1800	4
1801	4
1802	4
1803	4
1804	4
1805	4
1806	4
1807	4
1808	4
1809	4
1810	4
1811	4
1812	4
1813	4
1814	4
1815	4
1816	4
1817	4
1818	4
1819	4
1820	4
1821	4
1822	4
1823	4
1824	4
1825	4
1826	4
1827	4
1828	4
1829	4
1830	4
1831	4
1832	4
1833	4
1834	4
1835	4
1836	4
1837	4
1838	4
1839	4
1840	4
1841	4
1842	4
1843	4
1844	4
1845	4
1846	4
1847	4
1848	4
1849	4
1850	4
1851	4
1852	4
1853	4
1854	4
1855	4
1856	4
1857	4
1858	4
1859	4
1860	4
1861	4
1862	4
1863	4
1864	4
1865	4
1866	4
1867	4
1868	4
1869	4
1870	4
1871	4
1872	4
1873	4
1874	4
1875	4
1876	4
1877	4
1878	4
1879	4
1880	4
1881	4
1882	4
1883	4
1884	4
1885	4
1886	4
1887	4
1888	4
1889	4
1890	4
1891	4
1892	4
1893	4
1894	4
1895	4
1896	4
1897	4
1898	4
1899	4
1900	4
1901	4
1902	4
1903	4
1904	4
1905	4
1906	4
1907	4
1908	4
1909	4
1910	4
1911	4
1912	4
1913	4
1914	4
1915	4
1916	4
1917	3
1918	3
1919	3
1920	4
1921	4
1922	4
1923	4
1924	4
1925	4
1926	4
1927	4
1928	4
1929	4
1930	4
1931	4
1932	4
1933	4
1934	4
1935	4
1936	4
1937	4
1938	4
1939	3
1940	3
1941	3
1942	3
1943	3
1944	3
1945	3
1946	3
1947	3
1948	3
1949	3
1950	2
1951	2
1952	2
1953	2
1954	2
1955	2
1956	2
1957	2
1958	2
1959	2
1960	2
1961	2
1962	2
1963	2
1964	2
1965	2
1966	2
1967	2
1968	2
1969	2
1970	2
1971	2
1972	2
1973	2
1974	2
1975	2
1976	2
1977	2
1978	2
1979	2
1980	2
1981	2
1982	2
1983	2
1984	2
1985	2
1986	2
1987	2
1988	2
1989	2
1990	2
1991	2
1992	2
1993	2
1994	2
1995	2
1996	2
1997	2
1998	2
1999	2
2000	2
2001	2
2002	2
2003	2
2004	2
2005	2
2006	2
2007	2
2008	2
2009	2
2010	2
2011	2
2012	2
2013	4
2014	4