Year	Number of
1800	15390
1801	15390
1802	15390
1803	15390
1804	15390
1805	15390
1806	15390
1807	15390
1808	15390
1809	15380
1810	15380
1811	15390
1812	15400
1813	15420
1814	15450
1815	15480
1816	15520
1817	15560
1818	15620
1819	15680
1820	15740
1821	15820
1822	15900
1823	15980
1824	16080
1825	16180
1826	16290
1827	16400
1828	16530
1829	16660
1830	16800
1831	16940
1832	17090
1833	17240
1834	17390
1835	17540
1836	17690
1837	17840
1838	18000
1839	18160
1840	18310
1841	18480
1842	18640
1843	18800
1844	18970
1845	19150
1846	19320
1847	19500
1848	19680
1849	19870
1850	20050
1851	20250
1852	20450
1853	20650
1854	20850
1855	21060
1856	21270
1857	21490
1858	21710
1859	21930
1860	22160
1861	22380
1862	22620
1863	22850
1864	23090
1865	23330
1866	23570
1867	23820
1868	24060
1869	24310
1870	24560
1871	24820
1872	25080
1873	25330
1874	25590
1875	25860
1876	26120
1877	26390
1878	26660
1879	26940
1880	27220
1881	27490
1882	27770
1883	28060
1884	28350
1885	28640
1886	28940
1887	29230
1888	29530
1889	29840
1890	30150
1891	30460
1892	30780
1893	31090
1894	31420
1895	31740
1896	32080
1897	32450
1898	32830
1899	33220
1900	33640
1901	34010
1902	34350
1903	34760
1904	35180
1905	35640
1906	36100
1907	36540
1908	37020
1909	37490
1910	37980
1911	38460
1912	38960
1913	39490
1914	40050
1915	40640
1916	41240
1917	41800
1918	42360
1919	42940
1920	43470
1921	43960
1922	44400
1923	44850
1924	45290
1925	45750
1926	46200
1927	46670
1928	47130
1929	47610
1930	48410
1931	48680
1932	48930
1933	49170
1934	49380
1935	49590
1936	49770
1937	49950
1938	50100
1939	50250
1940	50380
1941	50500
1942	50600
1943	50690
1944	50770
1945	50840
1946	50890
1947	50930
1948	50970
1949	50990
1950	51000
1951	50560
1952	50410
1953	50300
1954	50250
1955	50240
1956	49120
1957	48470
1958	47540
1959	46720
1960	46340
1961	46290
1962	46620
1963	47140
1964	47590
1965	47700
1966	47520
1967	46950
1968	46150
1969	45240
1970	44370
1971	43510
1972	42570
1973	41730
1974	41140
1975	40840
1976	40840
1977	41070
1978	41530
1979	42060
1980	42680
1981	43370
1982	43940
1983	44300
1984	44280
1985	43810
1986	42910
1987	41470
1988	39780
1989	38160
1990	36830
1991	35740
1992	34950
1993	34290
1994	33660
1995	32890
1996	32010
1997	31030
1998	29980
1999	28930
2000	27900
2001	26910
2002	25940
2003	25000
2004	24200
2005	23550
2006	23010
2007	22560
2008	22150
2009	21710
2010	59720
2011	20630
2012	19950
2013	19190
2014	18460
2015	17840
