Year	Number of
1800	32210
1801	32210
1802	32210
1803	32210
1804	32210
1805	32210
1806	32210
1807	32210
1808	32210
1809	32210
1810	32210
1811	32210
1812	32220
1813	32240
1814	32260
1815	32290
1816	32320
1817	32360
1818	32410
1819	32460
1820	32520
1821	32580
1822	32650
1823	32720
1824	32800
1825	32890
1826	32980
1827	33080
1828	33180
1829	33290
1830	33410
1831	33530
1832	33650
1833	33780
1834	33900
1835	34020
1836	34150
1837	34270
1838	34400
1839	34520
1840	34650
1841	34770
1842	34900
1843	35030
1844	35160
1845	35280
1846	35410
1847	35540
1848	35670
1849	35800
1850	35930
1851	36060
1852	36190
1853	36320
1854	36450
1855	36580
1856	36710
1857	36840
1858	36980
1859	37110
1860	37240
1861	37370
1862	37510
1863	37640
1864	37780
1865	37910
1866	38050
1867	38180
1868	38320
1869	38460
1870	38600
1871	38740
1872	41590
1873	41770
1874	41960
1875	42150
1876	42340
1877	42520
1878	42350
1879	42180
1880	42000
1881	41820
1882	41640
1883	42020
1884	42400
1885	42790
1886	43180
1887	43570
1888	43230
1889	42890
1890	42540
1891	42190
1892	41840
1893	41850
1894	41850
1895	41860
1896	41450
1897	41040
1898	40390
1899	39740
1900	39090
1901	38440
1902	37780
1903	37090
1904	36400
1905	35710
1906	35020
1907	34340
1908	33520
1909	32720
1910	31910
1911	31120
1912	30330
1913	27240
1914	24200
1915	21220
1916	18280
1917	15400
1918	19340
1919	22390
1920	25370
1921	28820
1922	26750
1923	25490
1924	23490
1925	21850
1926	21150
1927	19680
1928	18940
1929	17520
1930	17230
1931	17010
1932	16850
1933	16620
1934	16390
1935	16150
1936	15980
1937	15740
1938	15430
1939	15110
1940	14790
1941	14740
1942	14680
1943	14620
1944	14570
1945	14510
1946	14440
1947	14380
1948	14320
1949	14250
1950	14190
1951	13770
1952	9644
1953	8179
1954	6584
1955	5778
1956	5176
1957	5733
1958	4474
1959	3989
1960	3440
1961	3172
1962	2834
1963	2905
1964	2736
1965	2979
1966	2750
1967	2510
1968	2379
1969	2631
1970	2570
1971	2496
1972	2647
1973	2741
1974	2574
1975	2636
1976	2719
1977	2406
1978	2450
1979	2306
1980	2238
1981	2493
1982	2308
1983	2135
1984	1980
1985	1848
1986	1751
1987	1677
1988	1620
1989	1556
1990	1486
1991	1392
1992	1303
1993	1198
1994	1099
1995	1000
1996	903
1997	806
1998	725
1999	654
2000	601
2001	568
2002	549
2003	545
2004	539
2005	537
2006	530
2007	526
2008	521
2009	510
2010	500
2011	480
2012	460
2013	437
2014	416
2015	400