Year Number of
1800 10670
1801 10670
1802 10670
1803 10670
1804 10670
1805 10670
1806 10690
1807 10690
1808 10690
1809 10690
1810 10690
1811 10690
1812 10700
1813 10720
1814 10740
1815 10760
1816 10790
1817 10830
1818 10890
1819 10930
1820 10990
1821 11040
1822 11110
1823 11180
1824 11250
1825 11330
1826 11420
1827 11510
1828 11600
1829 11730
1830 11840
1831 11950
1832 12070
1833 12190
1834 12310
1835 12430
1836 12550
1837 12670
1838 12800
1839 12920
1840 13070
1841 13200
1842 13320
1843 13460
1844 13590
1845 13720
1846 13850
1847 13990
1848 14130
1849 14260
1850 14400
1851 14540
1852 14710
1853 14860
1854 15000
1855 15150
1856 15300
1857 15450
1858 15600
1859 15750
1860 15910
1861 16060
1862 16220
1863 16410
1864 16570
1865 16730
1866 16900
1867 17060
1868 17230
1869 17400
1870 17570
1871 17740
1872 17920
1873 18090
1874 18290
1875 18470
1876 18650
1877 18830
1878 19020
1879 19200
1880 19390
1881 19580
1882 19770
1883 19960
1884 20160
1885 20350
1886 20590
1887 20780
1888 20990
1889 21200
1890 21400
1891 21610
1892 21830
1893 22040
1894 22260
1895 22470
1896 22690
1897 22940
1898 23160
1899 23380
1900 23590
1901 23800
1902 24000
1903 24210
1904 24420
1905 24620
1906 24820
1907 25010
1908 25250
1909 25440
1910 25640
1911 25840
1912 26040
1913 26240
1914 26440
1915 26650
1916 26860
1917 27060
1918 27270
1919 27480
1920 27740
1921 27950
1922 28170
1923 28380
1924 28600
1925 28820
1926 29040
1927 29310
1928 29530
1929 29760
1930 30030
1931 30290
1932 30560
1933 30820
1934 31090
1935 31350
1936 31610
1937 31860
1938 32120
1939 32380
1940 32630
1941 32520
1942 32420
1943 32310
1944 32190
1945 31510
1946 31470
1947 31470
1948 31450
1949 31460
1950 27930
1951 28440
1952 29020
1953 29520
1954 29970
1955 30390
1956 30810
1957 31000
1958 31060
1959 31140
1960 31350
1961 31600
1962 31820
1963 32040
1964 32250
1965 32480
1966 32670
1967 32890
1968 33110
1969 33380
1970 33760
1971 34140
1972 34420
1973 34620
1974 34740
1975 34850
1976 34950
1977 35020
1978 35150
1979 35400
1980 35760
1981 36200
1982 36620
1983 37030
1984 37420
1985 37820
1986 38200
1987 38450
1988 38640
1989 38870
1990 39150
1991 39320
1992 39470
1993 39680
1994 39890
1995 40090
1996 40460
1997 40710
1998 40820
1999 40870
2000 40950
2001 40860
2002 40680
2003 40480
2004 40230
2005 39940
2006 39690
2007 39400
2008 39140
2009 38920
2010 38710
2011 38510
2012 38240
2013 37980
2014 37510
2015 37090