Year	Number of
1800	34900
1801	35060
1802	35150
1803	35310
1804	35400
1805	35560
1806	35660
1807	35700
1808	35860
1809	35950
1810	36130
1811	36230
1812	36410
1813	36530
1814	36730
1815	36860
1816	37080
1817	37300
1818	37460
1819	37580
1820	37760
1821	38020
1822	38210
1823	38490
1824	38770
1825	38890
1826	39100
1827	39240
1828	39450
1829	39610
1830	38220
1831	38860
1832	39500
1833	40160
1834	40810
1835	36170
1836	37790
1837	40840
1838	42360
1839	41640
1840	41360
1841	38370
1842	40700
1843	38010
1844	34460
1845	35860
1846	40060
1847	41260
1848	36360
1849	38990
1850	32360
1851	33920
1852	33490
1853	32540
1854	37020
1855	41940
1856	39130
1857	40920
1858	41520
1859	43870
1860	33960
1861	41870
1862	40040
1863	43760
1864	45430
1865	50140
1866	50780
1867	41240
1868	43420
1869	43090
1870	45460
1871	57110
1872	50110
1873	43550
1874	44350
1875	49920
1876	46180
1877	44520
1878	44640
1879	46040
1880	51440
1881	45440
1882	43950
1883	44450
1884	46930
1885	43310
1886	49790
1887	43280
1888	46280
1889	46940
1890	48160
1891	48150
1892	49610
1893	48530
1894	42970
1895	47000
1896	41470
1897	40340
1898	42960
1899	45830
1900	44540
1901	38730
1902	39330
1903	40260
1904	40180
1905	38120
1906	39660
1907	35570
1908	38900
1909	36510
1910	35900
1911	40100
1912	32170
1913	32550
1914	37030
1915	34910
1916	31460
1917	38650
1918	35990
1919	30210
1920	25850
1921	24980
1922	22860
1923	20200
1924	18540
1925	19770
1926	19990
1927	18890
1928	17980
1929	20600
1930	18950
1931	16080
1932	16820
1933	16320
1934	14600
1935	14880
1936	15230
1937	14870
1938	14740
1939	14410
1940	15330
1941	14860
1942	14810
1943	13950
1944	14520
1945	16810
1946	13340
1947	11030
1948	9577
1949	8990
1950	8350
1951	7934
1952	7378
1953	6465
1954	6006
1955	5787
1956	5681
1957	5679
1958	5695
1959	5680
1960	5614
1961	5461
1962	5229
1963	4953
1964	4649
1965	4369
1966	4115
1967	3876
1968	3660
1969	3461
1970	3258
1971	3087
1972	2917
1973	2762
1974	2592
1975	2438
1976	2273
1977	2113
1978	1965
1979	1840
1980	1731
1981	1651
1982	1583
1983	1520
1984	1469
1985	1423
1986	1371
1987	1313
1988	1266
1989	1210
1990	1175
1991	1133
1992	1099
1993	1053
1994	999
1995	923
1996	851
1997	783
1998	715
1999	666
2000	637
2001	615
2002	603
2003	595
2004	600
2005	604
2006	606
2007	607
2008	605
2009	599
2010	590
2011	578
2012	561
2013	556
2014	537
2015	522