Year Number of
1800 10070
1801 10070
1802 10070
1803 10070
1804 10070
1805 10070
1806 10070
1807 10070
1808 10070
1809 10070
1810 10070
1811 10080
1812 10100
1813 10140
1814 10180
1815 10250
1816 10320
1817 10410
1818 10510
1819 10630
1820 10760
1821 10900
1822 11060
1823 11240
1824 11430
1825 11640
1826 11870
1827 12110
1828 12370
1829 12650
1830 12940
1831 13260
1832 13580
1833 13910
1834 14250
1835 14600
1836 14960
1837 15320
1838 15700
1839 16080
1840 16470
1841 16870
1842 17280
1843 17710
1844 18140
1845 18580
1846 19040
1847 19510
1848 19990
1849 20480
1850 20980
1851 21500
1852 22030
1853 22580
1854 23130
1855 23700
1856 24290
1857 24890
1858 25510
1859 26140
1860 26790
1861 27470
1862 28170
1863 28910
1864 29680
1865 30480
1866 31310
1867 32180
1868 33080
1869 34020
1870 34670
1871 35290
1872 38850
1873 39820
1874 41000
1875 42240
1876 43520
1877 44710
1878 46250
1879 47720
1880 49230
1881 50810
1882 52580
1883 53750
1884 54800
1885 56010
1886 56520
1887 56910
1888 57940
1889 58800
1890 59680
1891 61340
1892 63250
1893 65700
1894 68470
1895 71130
1896 72100
1897 73110
1898 73900
1899 74710
1900 75540
1901 76640
1902 76150
1903 75270
1904 74430
1905 73620
1906 72810
1907 71760
1908 70720
1909 69680
1910 68640
1911 67530
1912 66440
1913 60830
1914 59140
1915 59300
1916 59780
1917 62470
1918 68640
1919 66750
1920 63220
1921 57430
1922 56010
1923 57180
1924 60900
1925 65230
1926 64930
1927 70590
1928 62280
1929 58540
1930 54480
1931 55090
1932 52310
1933 47500
1934 54850
1935 61830
1936 56030
1937 55190
1938 61590
1939 52740
1940 53280
1941 50200
1942 51430
1943 47580
1944 48780
1945 49990
1946 44600
1947 47960
1948 41810
1949 40760
1950 41860
1951 41380
1952 40390
1953 39420
1954 37720
1955 39500
1956 36230
1957 44660
1958 39790
1959 37720
1960 35740
1961 33860
1962 32060
1963 30370
1964 28790
1965 29040
1966 29950
1967 30280
1968 30640
1969 38320
1970 38660
1971 39120
1972 39650
1973 40020
1974 40140
1975 39920
1976 39360
1977 38240
1978 36570
1979 34290
1980 31650
1981 28880
1982 26150
1983 23740
1984 21910
1985 20720
1986 20200
1987 20230
1988 20470
1989 20580
1990 20410
1991 19910
1992 19210
1993 18340
1994 17560
1995 16810
1996 16120
1997 15440
1998 14870
1999 14400
2000 14020
2001 13840
2002 13760
2003 13630
2004 13370
2005 12900
2006 12390
2007 11850
2008 11420
2009 11020
2010 10680
2011 10420
2012 10220
2013 9973
2014 9770
2015 9513