Year Number of
1800 15150
1801 15150
1802 15150
1803 15150
1804 15150
1805 15150
1806 15150
1807 15150
1808 15150
1809 15150
1810 15150
1811 15150
1812 15150
1813 15150
1814 15150
1815 15150
1816 15150
1817 15150
1818 15150
1819 15150
1820 15150
1821 15150
1822 15150
1823 15150
1824 15150
1825 15150
1826 15150
1827 15150
1828 15150
1829 15150
1830 15150
1831 15150
1832 15150
1833 15150
1834 15150
1835 15150
1836 15150
1837 15150
1838 15150
1839 15150
1840 15150
1841 15150
1842 15150
1843 15150
1844 15150
1845 15150
1846 15150
1847 15150
1848 15150
1849 15150
1850 15150
1851 15160
1852 15170
1853 15180
1854 15190
1855 15200
1856 15210
1857 15220
1858 15230
1859 15240
1860 15250
1861 15260
1862 15260
1863 15270
1864 15280
1865 15290
1866 15300
1867 15310
1868 15320
1869 15330
1870 15340
1871 15350
1872 15360
1873 15370
1874 15380
1875 15390
1876 15400
1877 15410
1878 15420
1879 15430
1880 15440
1881 15450
1882 15460
1883 15470
1884 15480
1885 15490
1886 15500
1887 15500
1888 15520
1889 15520
1890 15530
1891 15540
1892 15550
1893 15560
1894 15570
1895 15580
1896 15590
1897 15630
1898 15720
1899 15840
1900 16000
1901 16210
1902 16340
1903 16640
1904 16990
1905 17400
1906 17870
1907 18310
1908 18800
1909 19290
1910 19770
1911 20260
1912 20700
1913 21120
1914 21530
1915 21960
1916 22400
1917 22840
1918 23270
1919 23720
1920 24180
1921 24580
1922 24910
1923 25190
1924 25480
1925 25760
1926 26300
1927 27120
1928 28210
1929 29340
1930 30720
1931 32080
1932 33430
1933 34770
1934 36110
1935 37430
1936 38740
1937 40040
1938 41340
1939 42620
1940 43890
1941 45120
1942 46350
1943 47560
1944 48760
1945 49950
1946 51130
1947 52300
1948 53460
1949 54610
1950 55740
1951 56120
1952 57140
1953 58240
1954 59410
1955 60650
1956 61970
1957 63360
1958 64820
1959 66360
1960 67960
1961 69630
1962 71300
1963 72970
1964 71240
1965 72630
1966 74350
1967 76330
1968 78450
1969 80440
1970 82230
1971 83450
1972 83860
1973 83610
1974 83120
1975 82700
1976 82030
1977 80990
1978 79860
1979 78630
1980 77600
1981 76800
1982 76400
1983 77230
1984 80450
1985 86180
1986 92040
1987 98370
1988 103900
1989 106600
1990 105600
1991 104500
1992 100300
1993 94840
1994 90500
1995 88430
1996 87130
1997 87010
1998 86960
1999 85640
2000 82500
2001 77770
2002 71960
2003 66370
2004 62000
2005 59020
2006 57240
2007 56310
2008 55400
2009 54460
2010 53220
2011 50360
2012 46620
2013 43400
2014 41190
2015 40050