Year Number of 1800 154400 1801 154800 1802 155100 1803 155500 1804 155800 1805 156200 1806 156500 1807 156900 1808 157300 1809 157600 1810 158000 1811 158400 1812 158800 1813 159200 1814 159600 1815 160100 1816 160600 1817 161100 1818 161600 1819 162200 1820 162800 1821 163400 1822 164000 1823 164700 1824 165300 1825 166000 1826 166800 1827 167500 1828 168300 1829 169100 1830 169900 1831 170800 1832 171600 1833 172500 1834 173300 1835 174200 1836 175100 1837 175900 1838 176800 1839 177700 1840 178600 1841 179500 1842 180400 1843 181300 1844 182200 1845 183100 1846 184000 1847 184900 1848 185900 1849 186800 1850 187700 1851 188600 1852 189500 1853 190400 1854 191300 1855 192200 1856 193100 1857 194000 1858 194900 1859 195800 1860 196700 1861 197700 1862 198600 1863 199600 1864 200600 1865 201600 1866 202600 1867 203600 1868 204700 1869 205800 1870 206800 1871 208000 1872 209100 1873 210100 1874 211300 1875 212500 1876 213700 1877 214900 1878 216200 1879 217400 1880 218700 1881 220000 1882 221300 1883 222600 1884 223900 1885 225300 1886 226600 1887 227900 1888 229300 1889 230600 1890 232000 1891 233400 1892 234800 1893 236200 1894 237600 1895 238900 1896 240300 1897 241700 1898 243000 1899 244300 1900 245600 1901 246900 1902 248100 1903 249200 1904 250400 1905 251500 1906 252600 1907 253600 1908 254600 1909 255500 1910 256500 1911 257400 1912 258300 1913 259800 1914 261800 1915 264300 1916 266900 1917 269500 1918 272300 1919 275000 1920 277700 1921 280500 1922 283300 1923 286200 1924 289000 1925 291900 1926 294500 1927 297400 1928 300000 1929 302600 1930 307500 1931 312300 1932 316200 1933 320100 1934 323900 1935 327600 1936 331300 1937 335000 1938 338500 1939 342100 1940 345600 1941 334700 1942 324100 1943 314600 1944 304200 1945 294000 1946 283800 1947 273900 1948 264000 1949 268200 1950 272500 1951 276000 1952 282400 1953 288600 1954 294800 1955 300900 1956 306900 1957 312800 1958 318600 1959 316700 1960 314700 1961 312500 1962 310200 1963 307800 1964 305400 1965 302900 1966 300300 1967 297600 1968 277700 1969 259300 1970 242700 1971 219400 1972 212400 1973 206600 1974 201400 1975 197300 1976 193000 1977 188700 1978 184400 1979 180300 1980 176600 1981 173300 1982 170300 1983 167300 1984 163200 1985 157500 1986 150400 1987 141600 1988 131600 1989 120600 1990 109600 1991 99250 1992 89020 1993 79500 1994 71160 1995 64500 1996 58810 1997 54570 1998 51100 1999 48060 2000 44860 2001 41520 2002 38310 2003 35390 2004 32960 2005 31120 2006 29990 2007 29140 2008 28270 2009 27470 2010 26640 2011 25680 2012 24610 2013 23480 2014 22210 2015 21010