Year Number of 1800 18940 1801 18940 1802 18940 1803 18940 1804 18940 1805 18940 1806 18940 1807 18940 1808 18940 1809 18940 1810 18940 1811 18950 1812 18960 1813 18980 1814 19000 1815 19030 1816 19060 1817 19100 1818 19150 1819 19200 1820 19260 1821 19320 1822 19390 1823 19460 1824 19550 1825 19630 1826 19730 1827 19830 1828 19930 1829 20050 1830 20160 1831 20290 1832 20420 1833 20540 1834 20670 1835 20800 1836 20930 1837 21060 1838 21190 1839 21320 1840 21450 1841 21580 1842 21720 1843 21850 1844 21990 1845 22120 1846 22260 1847 22400 1848 22540 1849 22680 1850 22820 1851 22970 1852 23130 1853 23290 1854 23450 1855 23620 1856 23780 1857 23940 1858 24110 1859 24280 1860 24440 1861 24610 1862 24780 1863 24950 1864 25130 1865 25300 1866 25480 1867 25650 1868 25830 1869 26010 1870 26190 1871 26370 1872 26550 1873 26730 1874 26910 1875 27100 1876 27290 1877 27470 1878 27660 1879 27850 1880 28040 1881 28240 1882 28430 1883 28630 1884 28820 1885 29020 1886 29220 1887 29420 1888 29620 1889 29830 1890 30030 1891 30240 1892 30450 1893 30660 1894 30870 1895 31080 1896 31290 1897 31500 1898 31700 1899 31900 1900 32100 1901 32290 1902 32480 1903 32660 1904 32840 1905 33020 1906 33200 1907 33360 1908 33520 1909 33680 1910 33840 1911 33990 1912 34150 1913 34300 1914 34450 1915 34600 1916 34760 1917 34940 1918 35080 1919 35240 1920 35400 1921 35550 1922 35710 1923 35860 1924 36020 1925 36180 1926 36530 1927 36830 1928 37180 1929 37490 1930 37840 1931 37720 1932 37600 1933 37580 1934 37440 1935 37300 1936 37150 1937 36990 1938 36950 1939 36780 1940 36610 1941 36430 1942 36250 1943 36180 1944 35990 1945 35460 1946 34950 1947 34430 1948 33920 1949 33420 1950 32920 1951 32920 1952 33580 1953 34080 1954 34410 1955 34660 1956 31640 1957 31650 1958 31580 1959 31390 1960 31050 1961 30870 1962 30460 1963 30100 1964 30060 1965 30570 1966 31280 1967 32410 1968 34000 1969 35880 1970 37980 1971 40290 1972 42770 1973 45600 1974 48910 1975 52500 1976 56020 1977 58710 1978 59710 1979 58810 1980 56680 1981 53900 1982 51040 1983 48860 1984 47950 1985 48100 1986 49000 1987 50670 1988 52240 1989 52460 1990 50490 1991 47780 1992 42470 1993 37970 1994 55560 1995 44300 1996 32740 1997 44150 1998 58560 1999 60030 2000 60830 2001 59720 2002 54460 2003 47480 2004 40790 2005 35750 2006 32090 2007 29360 2008 27180 2009 25320 2010 23400 2011 21080 2012 18760 2013 16820 2014 15250 2015 14210