Year Number Of Apartments 1841 2837.00 1842 2388.00 1843 2403.00 1844 2231.00 1845 1905.00 1846 1809.00 1847 1951.00 1848 2211.00 1849 1461.00 1850 910.000 1851 519.000 1852 631.000 1853 1250.00 1854 1689.00 1855 565.000 1856 1553.00 1857 2196.00 1858 2011.00 1859 4642.00 1860 3852.00 1861 8697.00 1862 7551.00 1863 8594.00 1864 9163.00 1865 7725.00 1866 7352.00 1867 5313.00 1868 4317.00 1869 3087.00 1870 2397.00 1871 4462.00 1872 3273.00 1873 8307.00 1874 15319.0 1875 20008.0 1876 17646.0 1877 15839.0 1878 12329.0 1879 8263.00 1880 5200.00 1881 7443.00 1882 7705.00 1883 8358.00 1884 7980.00 1885 11499.0 1886 9867.00 1887 12902.0 1888 16893.0 1889 19132.0 1890 21464.0 1891 18810.0 1892 16408.0 1893 12225.0 1894 7912.00