Year	Number of
1800	18880
1801	18960
1802	19040
1803	19120
1804	19200
1805	19280
1806	19360
1807	19440
1808	19520
1809	19610
1810	19700
1811	19780
1812	19870
1813	19960
1814	20040
1815	20140
1816	20230
1817	20320
1818	20420
1819	20520
1820	20620
1821	20720
1822	20820
1823	20930
1824	21040
1825	21150
1826	21260
1827	21370
1828	21490
1829	21600
1830	21720
1831	21850
1832	21970
1833	22100
1834	22230
1835	22360
1836	22490
1837	22630
1838	22770
1839	22910
1840	23050
1841	23200
1842	23340
1843	23480
1844	23630
1845	23770
1846	23920
1847	24070
1848	24220
1849	24360
1850	24510
1851	24040
1852	24020
1853	23230
1854	22780
1855	21620
1856	24170
1857	24440
1858	25880
1859	27450
1860	27100
1861	26890
1862	27290
1863	28400
1864	28580
1865	28340
1866	28970
1867	27390
1868	26190
1869	26390
1870	25000
1871	24620
1872	24240
1873	23770
1874	23940
1875	24630
1876	24990
1877	25340
1878	24460
1879	22020
1880	21150
1881	22180
1882	19820
1883	18020
1884	17770
1885	18500
1886	17930
1887	17600
1888	16570
1889	17750
1890	16460
1891	19040
1892	16450
1893	17420
1894	17480
1895	17270
1896	15780
1897	16330
1898	18150
1899	17100
1900	18580
1901	17760
1902	16190
1903	15830
1904	17240
1905	15940
1906	15670
1907	14540
1908	13590
1909	14140
1910	13050
1911	14090
1912	11060
1913	11110
1914	10270
1915	8509
1916	7538
1917	7445
1918	9101
1919	7963
1920	8676
1921	6917
1922	6432
1923	5772
1924	5724
1925	5512
1926	5180
1927	5129
1928	5013
1929	4678
1930	4574
1931	4473
1932	4633
1933	4281
1934	4232
1935	4493
1936	4317
1937	4427
1938	4133
1939	4063
1940	4645
1941	4130
1942	3903
1943	3979
1944	4192
1945	4059
1946	3952
1947	3850
1948	3569
1949	3459
1950	3365
1951	3049
1952	2822
1953	2683
1954	2590
1955	2532
1956	2481
1957	2460
1958	2464
1959	2498
1960	2549
1961	2598
1962	2625
1963	2612
1964	2551
1965	2459
1966	2356
1967	2236
1968	2106
1969	1975
1970	1832
1971	1692
1972	1543
1973	1399
1974	1253
1975	1117
1976	1001
1977	904
1978	826
1979	767
1980	735
1981	712
1982	706
1983	704
1984	706
1985	701
1986	696
1987	681
1988	655
1989	634
1990	622
1991	611
1992	600
1993	590
1994	573
1995	553
1996	525
1997	506
1998	474
1999	450
2000	430
2001	418
2002	401
2003	382
2004	372
2005	367
2006	363
2007	356
2008	358
2009	360
2010	361
2011	359
2012	356
2013	351
2014	338
2015	334