Year Number of
1800 1920
1801 1918
1802 1917
1803 1915
1804 1913
1805 1912
1806 1910
1807 1909
1808 1907
1809 1905
1810 1904
1811 1903
1812 1902
1813 1902
1814 1902
1815 1903
1816 1903
1817 1905
1818 1907
1819 1910
1820 1912
1821 1916
1822 1919
1823 1924
1824 1928
1825 1933
1826 1939
1827 1945
1828 1951
1829 1958
1830 1966
1831 1974
1832 1982
1833 1989
1834 1997
1835 2005
1836 2013
1837 2021
1838 2030
1839 2038
1840 2045
1841 2054
1842 2062
1843 2070
1844 2078
1845 2087
1846 2095
1847 2103
1848 2112
1849 2120
1850 2129
1851 2139
1852 2148
1853 2158
1854 2168
1855 2178
1856 2188
1857 2198
1858 2208
1859 2218
1860 2228
1861 2239
1862 2249
1863 2259
1864 2269
1865 2280
1866 2291
1867 2301
1868 2311
1869 2322
1870 2333
1871 2344
1872 2354
1873 2364
1874 2376
1875 2386
1876 2397
1877 2408
1878 2419
1879 2430
1880 2441
1881 2452
1882 2464
1883 2475
1884 2486
1885 2497
1886 2509
1887 2520
1888 2531
1889 2543
1890 2555
1891 2566
1892 2578
1893 2590
1894 2602
1895 2614
1896 2626
1897 2638
1898 2650
1899 2662
1900 2674
1901 2686
1902 2698
1903 2711
1904 2723
1905 2736
1906 2748
1907 2760
1908 2773
1909 2786
1910 2798
1911 2811
1912 2824
1913 2837
1914 2850
1915 2863
1916 2876
1917 2889
1918 2900
1919 2912
1920 2923
1921 2935
1922 2947
1923 2958
1924 2970
1925 2982
1926 2994
1927 3006
1928 3018
1929 3029
1930 3050
1931 3071
1932 3092
1933 3113
1934 3134
1935 3155
1936 3176
1937 3197
1938 3218
1939 3238
1940 3259
1941 3280
1942 3300
1943 3321
1944 3341
1945 3361
1946 3382
1947 3402
1948 3422
1949 3443
1950 3463
1951 3502
1952 3595
1953 3665
1954 3721
1955 3775
1956 3804
1957 3821
1958 3826
1959 3832
1960 3835
1961 3835
1962 3834
1963 3834
1964 3836
1965 3841
1966 3850
1967 3862
1968 3877
1969 3541
1970 3576
1971 3585
1972 3590
1973 3598
1974 3606
1975 3617
1976 3631
1977 3634
1978 3620
1979 3582
1980 3520
1981 3455
1982 3347
1983 3228
1984 3129
1985 3057
1986 3023
1987 3008
1988 2987
1989 2911
1990 2752
1991 2590
1992 2363
1993 2118
1994 1899
1995 1741
1996 1583
1997 1474
1998 1399
1999 1333
2000 1263
2001 1175
2002 1088
2003 1003
2004 926
2005 862
2006 812
2007 768
2008 729
2009 687
2010 638
2011 588
2012 535
2013 485
2014 444
2015 414