Year Number of 1800 13300 1801 13300 1802 13300 1803 13300 1804 13300 1805 13300 1806 13300 1807 13300 1808 13300 1809 13300 1810 13300 1811 13310 1812 13320 1813 13330 1814 13360 1815 13380 1816 13420 1817 13460 1818 13500 1819 13560 1820 13620 1821 13680 1822 13750 1823 13830 1824 13910 1825 14000 1826 14090 1827 14190 1828 14300 1829 14420 1830 14540 1831 14670 1832 14800 1833 14930 1834 15060 1835 15190 1836 15320 1837 15460 1838 15590 1839 15730 1840 15870 1841 16010 1842 16150 1843 16290 1844 16440 1845 16580 1846 16730 1847 16870 1848 17020 1849 17170 1850 17320 1851 17370 1852 17410 1853 17430 1854 17470 1855 17510 1856 17550 1857 17560 1858 17600 1859 17640 1860 17680 1861 17680 1862 17720 1863 17870 1864 18000 1865 18160 1866 18280 1867 18440 1868 18610 1869 18740 1870 18900 1871 19030 1872 19200 1873 19330 1874 19500 1875 19670 1876 19810 1877 19980 1878 20120 1879 20290 1880 20470 1881 20610 1882 20790 1883 20940 1884 21120 1885 21260 1886 21450 1887 21630 1888 21780 1889 21980 1890 22130 1891 22320 1892 22520 1893 22680 1894 22870 1895 23030 1896 23230 1897 23380 1898 23580 1899 23770 1900 23920 1901 24110 1902 24250 1903 24440 1904 24620 1905 24750 1906 24920 1907 25050 1908 25220 1909 25340 1910 25500 1911 25670 1912 25780 1913 25950 1914 26110 1915 26230 1916 26400 1917 26560 1918 26680 1919 26850 1920 27020 1921 26720 1922 26370 1923 26110 1924 25720 1925 25460 1926 25080 1927 24820 1928 24480 1929 24170 1930 24110 1931 23950 1932 23860 1933 23680 1934 23580 1935 23380 1936 23250 1937 23120 1938 22900 1939 22750 1940 22500 1941 22340 1942 22080 1943 21900 1944 21590 1945 21360 1946 21120 1947 20800 1948 20550 1949 20210 1950 19950 1951 19360 1952 18600 1953 17940 1954 17390 1955 16930 1956 16560 1957 16260 1958 16020 1959 15810 1960 15590 1961 14590 1962 13590 1963 12600 1964 11620 1965 10660 1966 9761 1967 8933 1968 8189 1969 7522 1970 6919 1971 6305 1972 5729 1973 5189 1974 4684 1975 4226 1976 3825 1977 3485 1978 3199 1979 2961 1980 2649 1981 2518 1982 2383 1983 2236 1984 2484 1985 2337 1986 2142 1987 1910 1988 1654 1989 1415 1990 1194 1991 1020 1992 1020 1993 932 1994 723 1995 678 1996 542 1997 518 1998 502 1999 479 2000 440 2001 383 2002 324 2003 269 2004 227 2005 210 2006 215 2007 246 2008 282 2009 307 2010 310 2011 293 2012 263 2013 227 2014 193 2015 169