Year Number of
1800 32000
1801 32140
1802 32280
1803 32420
1804 32560
1805 32700
1806 32840
1807 32990
1808 33130
1809 33270
1810 33430
1811 33580
1812 33730
1813 33890
1814 34060
1815 34230
1816 34400
1817 34580
1818 34760
1819 34950
1820 35150
1821 35350
1822 35550
1823 35760
1824 35980
1825 36200
1826 36430
1827 36660
1828 36900
1829 37140
1830 37390
1831 37650
1832 37910
1833 38170
1834 38430
1835 38690
1836 38960
1837 39220
1838 39490
1839 39760
1840 40030
1841 40310
1842 40580
1843 40860
1844 41140
1845 41420
1846 41700
1847 41990
1848 42280
1849 42570
1850 42860
1851 43150
1852 43440
1853 43730
1854 44030
1855 44330
1856 44630
1857 44930
1858 45240
1859 45540
1860 45850
1861 46160
1862 46470
1863 46790
1864 47100
1865 47420
1866 47740
1867 48070
1868 48390
1869 48720
1870 49050
1871 49380
1872 49720
1873 50050
1874 50380
1875 50720
1876 51070
1877 51410
1878 51760
1879 52110
1880 52460
1881 52810
1882 53160
1883 53520
1884 53880
1885 54250
1886 54610
1887 54980
1888 55350
1889 55720
1890 56100
1891 56480
1892 56860
1893 57250
1894 57640
1895 58020
1896 58400
1897 58780
1898 59160
1899 59530
1900 59890
1901 60240
1902 60580
1903 60920
1904 61250
1905 61570
1906 61890
1907 62190
1908 62490
1909 62780
1910 63060
1911 63340
1912 63620
1913 63890
1914 64170
1915 64450
1916 64730
1917 65010
1918 65300
1919 65580
1920 65870
1921 66160
1922 66450
1923 66740
1924 67030
1925 67320
1926 67800
1927 68180
1928 68660
1929 68880
1930 69100
1931 69320
1932 69530
1933 69730
1934 69920
1935 70110
1936 70290
1937 70470
1938 70640
1939 70800
1940 70950
1941 71100
1942 71240
1943 71380
1944 71510
1945 71630
1946 69580
1947 67780
1948 65800
1949 63850
1950 62130
1951 61800
1952 61740
1953 61600
1954 61560
1955 61230
1956 59500
1957 57810
1958 56160
1959 54550
1960 53000
1961 51490
1962 50040
1963 48640
1964 47320
1965 46070
1966 45620
1967 45140
1968 39880
1969 41400
1970 43190
1971 45200
1972 47400
1973 49890
1974 52580
1975 55240
1976 57960
1977 60540
1978 62980
1979 65100
1980 66970
1981 68620
1982 69450
1983 69880
1984 70440
1985 71750
1986 73410
1987 76040
1988 78800
1989 80780
1990 81640
1991 81920
1992 81010
1993 79480
1994 77940
1995 76800
1996 75720
1997 74570
1998 73290
1999 71520
2000 69120
2001 66320
2002 63150
2003 59820
2004 56510
2005 53530
2006 50680
2007 48310
2008 46350
2009 44880
2010 43650
2011 42740
2012 41950
2013 41270
2014 40700
2015 40080