Year Number of 1800 42310 1801 42310 1802 42310 1803 42310 1804 42310 1805 42310 1806 42310 1807 42310 1808 42310 1809 42310 1810 42310 1811 42300 1812 42280 1813 42250 1814 42210 1815 42160 1816 42100 1817 42040 1818 41960 1819 41870 1820 41780 1821 41670 1822 41560 1823 41430 1824 41300 1825 41160 1826 41000 1827 40840 1828 40670 1829 40500 1830 40310 1831 40110 1832 39920 1833 39720 1834 39530 1835 39330 1836 39140 1837 38950 1838 38760 1839 38570 1840 38380 1841 38200 1842 38010 1843 37830 1844 37640 1845 37460 1846 37280 1847 37090 1848 36910 1849 36730 1850 36550 1851 36380 1852 36200 1853 36020 1854 35850 1855 35670 1856 35500 1857 35330 1858 35160 1859 34980 1860 34820 1861 34660 1862 34530 1863 34410 1864 34310 1865 34230 1866 34170 1867 34130 1868 34100 1869 34100 1870 34110 1871 34140 1872 34180 1873 34160 1874 34250 1875 34360 1876 34490 1877 34600 1878 34790 1879 35000 1880 35210 1881 35420 1882 35630 1883 35840 1884 36060 1885 36280 1886 36490 1887 36710 1888 36930 1889 37150 1890 37380 1891 37600 1892 37830 1893 38010 1894 38180 1895 38360 1896 38530 1897 38700 1898 38870 1899 39030 1900 39180 1901 39330 1902 39470 1903 39610 1904 39740 1905 39870 1906 39990 1907 40100 1908 40200 1909 40310 1910 40400 1911 40500 1912 40590 1913 40930 1914 41520 1915 42380 1916 43240 1917 44130 1918 45040 1919 45960 1920 46900 1921 47860 1922 48840 1923 49840 1924 50860 1925 51900 1926 52170 1927 52360 1928 52480 1929 52740 1930 53380 1931 53960 1932 54340 1933 54810 1934 55290 1935 55700 1936 56140 1937 56520 1938 56880 1939 57100 1940 57280 1941 57400 1942 57510 1943 57550 1944 57610 1945 57640 1946 57650 1947 57620 1948 57520 1949 57320 1950 59340 1951 55700 1952 52960 1953 51530 1954 51360 1955 52250 1956 53360 1957 55280 1958 57620 1959 59910 1960 61970 1961 64240 1962 65890 1963 67040 1964 68090 1965 69300 1966 71010 1967 72560 1968 74180 1969 75750 1970 77410 1971 78770 1972 79740 1973 80180 1974 79810 1975 78620 1976 77230 1977 75560 1978 74120 1979 73520 1980 74090 1981 74900 1982 76160 1983 77520 1984 78290 1985 78180 1986 77380 1987 75780 1988 73720 1989 71720 1990 69970 1991 68800 1992 68090 1993 67750 1994 67580 1995 67360 1996 66980 1997 66110 1998 64850 1999 63600 2000 62480 2001 61520 2002 61090 2003 60960 2004 60950 2005 61000 2006 60900 2007 60390 2008 59630 2009 58760 2010 57910 2011 57260 2012 56790 2013 56190 2014 55360 2015 54060