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	3
1846	3
1847	3
1848	3
1849	3
1850	3
1851	3
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	2
1902	4
1903	4
1904	4
1905	4
1906	4
1907	4
1908	4
1909	4
1910	4
1911	2
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	2
1927	4
1928	4
1929	4
1930	4
1931	4
1932	4
1933	4
1934	4
1935	4
1936	2
1937	4
1938	4
1939	4
1940	4
1941	2
1942	4
1943	4
1944	4
1945	4
1946	2
1947	4
1948	4
1949	4
1950	1
1951	1
1952	1
1953	1
1954	1
1955	1
1956	1
1957	1
1958	1
1959	1
1960	1
1961	1
1962	1
1963	1
1964	1
1965	1
1966	1
1967	1
1968	1
1969	1
1970	1
1971	1
1972	1
1973	1
1974	1
1975	1
1976	1
1977	1
1978	1
1979	1
1980	1
1981	1
1982	1
1983	1
1984	1
1985	1
1986	1
1987	1
1988	1
1989	1
1990	1
1991	1
1992	1
1993	1
1994	1
1995	1
1996	1
1997	1
1998	1
1999	1
2000	1
2001	1
2002	1
2003	1
2004	1
2005	1
2006	1
2007	2
2008	2
2009	2
2010	2
2011	2
2012	2
2013	4
2014	4