----------------------------------------- Period |Number | ------------------------------|---------| Year ending September 30-- | | 1820 | 8,385| 1821 | 9,127| 1822 | 6,911| 1823 | 6,354| 1824 | 7,912| 1825 | 10,199| 1826 | 10,837| 1827 | 18,875| 1828 | 27,382| 1829 | 22,520| 1830 | 23,322| 1831 | 22,633| Oct. 1, 1831, to Dec. 31, 1832| 60,482| Year ending December 31-- | | 1833 | 58,640| 1834 | 65,365| 1835 | 45,374| 1836 | 76,242| 1837 | 79,340| 1838 | 38,914| 1839 | 68,069| 1840 | 84,066| 1841 | 80,289| 1842 | 104,565| Jan. 1 to Sept. 30, 1843 | 52,496| Year ending September 30-- | | 1844 | 78,615| 1845 | 114,371| 1846 | 154,416| 1847 | 234,968| 1848 | 226,527| 1849 | 297,024| 1850 | 310,004| Oct. 1 to Dec. 31, 1850 | 59,976| Year ending December 31-- | | 1851 | 379,466| 1852 | 371,603| 1853 | 368,645| 1854 | 427,833| 1855 | 200,877| 1856 | 195,857| Jan. 1 to June 30, 1857 | 112,123| Year ending June 30-- | | 1858 | 191,942| 1859 | 129,571| 1860 | 133,143| Year ending June 30-- | | 1861 | 142,877| 1862 | 72,183| 1863 | 132,925| 1864 | 191,114| 1865 | 180,339| 1866 | 332,577| 1867 | 303,104| 1868 | 282,189| 1869 | 352,768| 1870 | 387,203| 1871 | 321,350| 1872 | 404,806| 1873 | 459,803| 1874 | 313,339| 1875 | 227,498| 1876 | 169,986| 1877 | 141,857|