Year	Number
1815	-9
1816	-9
1817	-9
1818	-9
1819	-9
1820	-9
1821	-9
1822	-9
1823	-9
1824	-9
1825	-9
1826	-9
1827	-9
1828	-9
1829	-9
1830	-9
1831	-9
1832	-9
1833	-9
1834	-9
1835	-9
1836	-9
1837	-9
1838	-9
1839	-9
1840	-9
1841	-9
1842	-9
1843	-9
1844	-9
1845	-9
1846	-9
1847	-9
1848	-9
1849	-9
1850	-9
1851	-9
1852	-9
1853	-9
1854	-9
1855	-9
1856	-9
1857	-9
1858	-9
1859	-9
1860	-9
1861	-9
1862	-9
1863	-9
1864	-9
1865	-9
1866	-9
1867	-9
1868	-9
1869	-9
1870	-9