Year Number of 1800 153000 1801 153200 1802 153700 1803 154000 1804 154400 1805 154700 1806 155200 1807 155400 1808 155900 1809 156200 1810 156500 1811 157000 1812 157300 1813 157800 1814 158200 1815 158800 1816 170600 1817 171600 1818 176400 1819 181300 1820 174600 1821 183500 1822 176800 1823 170000 1824 163100 1825 204300 1826 185500 1827 190800 1828 189700 1829 188600 1830 187500 1831 186300 1832 185200 1833 203500 1834 217800 1835 189300 1836 203700 1837 214000 1838 197900 1839 212700 1840 218700 1841 206900 1842 217600 1843 214900 1844 207500 1845 186000 1846 192400 1847 180000 1848 172200 1849 198100 1850 205000 1851 207200 1852 204400 1853 211700 1854 203900 1855 185600 1856 208700 1857 227100 1858 251200 1859 265200 1860 268600 1861 266600 1862 292700 1863 279500 1864 267400 1865 254900 1866 242100 1867 228900 1868 256500 1869 260100 1870 289000 1871 274000 1872 265000 1873 281600 1874 285800 1875 276500 1876 280600 1877 270700 1878 274800 1879 286100 1880 283200 1881 280000 1882 291800 1883 296200 1884 292900 1885 312800 1886 314200 1887 315700 1888 324600 1889 341400 1890 334100 1891 334500 1892 318700 1893 334700 1894 350300 1895 349800 1896 341000 1897 332200 1898 323400 1899 322400 1900 321400 1901 312400 1902 311200 1903 294500 1904 293200 1905 284200 1906 290400 1907 288900 1908 279800 1909 276900 1910 267200 1911 257600 1912 252800 1913 261500 1914 268900 1915 215300 1916 199300 1917 176100 1918 175000 1919 239200 1920 254700 1921 243000 1922 238700 1923 243600 1924 236400 1925 237800 1926 220800 1927 209200 1928 204900 1929 212700 1930 201200 1931 197900 1932 199400 1933 172200 1934 191200 1935 167600 1936 187800 1937 178500 1938 182900 1939 176300 1940 169900 1941 163700 1942 157700 1943 151900 1944 146300 1945 140900 1946 135700 1947 130700 1948 125900 1949 119100 1950 119300 1951 131500 1952 107800 1953 100500 1954 94680 1955 91970 1956 77720 1957 70480 1958 65660 1959 56000 1960 48200 1961 41700 1962 35800 1963 30470 1964 25950 1965 22600 1966 20520 1967 19800 1968 20110 1969 20620 1970 20720 1971 20300 1972 19530 1973 18520 1974 17720 1975 17370 1976 17320 1977 17170 1978 16860 1979 16520 1980 16300 1981 16180 1982 16060 1983 15760 1984 15200 1985 14310 1986 13270 1987 12170 1988 11080 1989 10090 1990 9287 1991 8765 1992 8516 1993 8363 1994 8097 1995 7419 1996 6507 1997 5486 1998 4539 1999 3833 2000 3376 2001 3068 2002 2874 2003 2785 2004 2741 2005 2760 2006 2773 2007 2806 2008 2833 2009 2716 2010 2581 2011 2427 2012 2262 2013 2108 2014 1999 2015 1917