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