Year Number of
1800 1696
1801 1696
1802 1696
1803 1696
1804 1696
1805 1696
1806 1696
1807 1696
1808 1696
1809 1696
1810 1696
1811 1697
1812 1700
1813 1704
1814 1709
1815 1716
1816 1725
1817 1735
1818 1746
1819 1759
1820 1773
1821 1790
1822 1807
1823 1827
1824 1848
1825 1871
1826 1895
1827 1921
1828 1949
1829 1979
1830 2010
1831 2044
1832 2078
1833 2112
1834 2147
1835 2183
1836 2220
1837 2256
1838 2294
1839 2332
1840 2371
1841 2411
1842 2454
1843 2498
1844 2545
1845 2593
1846 2644
1847 2697
1848 2752
1849 2810
1850 2870
1851 2934
1852 3000
1853 3069
1854 3141
1855 3216
1856 3294
1857 3375
1858 3459
1859 3547
1860 3638
1861 3733
1862 3830
1863 3929
1864 4031
1865 4136
1866 4243
1867 4353
1868 4466
1869 4582
1870 4701
1871 4823
1872 4948
1873 5065
1874 5197
1875 5331
1876 5470
1877 5600
1878 5746
1879 5894
1880 6047
1881 6193
1882 6354
1883 6518
1884 6677
1885 6850
1886 7027
1887 7200
1888 7386
1889 7577
1890 7774
1891 7975
1892 8181
1893 8393
1894 8610
1895 8833
1896 9063
1897 9303
1898 9551
1899 9807
1900 10070
1901 10350
1902 10610
1903 10900
1904 11210
1905 11530
1906 11850
1907 12160
1908 12490
1909 12840
1910 13190
1911 13510
1912 13840
1913 14150
1914 14440
1915 14710
1916 14980
1917 15250
1918 15520
1919 15800
1920 16160
1921 16600
1922 17140
1923 17680
1924 18240
1925 18810
1926 19390
1927 19990
1928 20600
1929 21220
1930 22540
1931 23850
1932 25140
1933 26420
1934 27690
1935 28940
1936 29270
1937 29630
1938 29830
1939 30070
1940 30160
1941 29110
1942 28060
1943 27010
1944 25970
1945 24940
1946 23930
1947 22930
1948 21960
1949 21010
1950 17020
1951 17920
1952 18780
1953 19580
1954 20310
1955 21000
1956 21620
1957 22130
1958 22550
1959 22910
1960 23220
1961 23430
1962 23560
1963 23630
1964 23580
1965 23450
1966 23230
1967 22960
1968 22650
1969 22310
1970 21950
1971 21550
1972 21100
1973 20600
1974 20080
1975 19500
1976 18920
1977 18340
1978 17770
1979 17250
1980 16780
1981 16380
1982 16050
1983 15720
1984 15380
1985 14960
1986 14520
1987 14010
1988 13480
1989 12980
1990 12520
1991 12130
1992 11770
1993 11440
1994 11060
1995 10650
1996 10200
1997 9704
1998 9235
1999 8849
2000 8580
2001 8390
2002 8313
2003 8307
2004 8276
2005 8206
2006 8076
2007 7908
2008 7707
2009 7504
2010 7348
2011 7221
2012 7094
2013 7000
2014 6854
2015 6710