Year	Number of
1800	22560
1801	22580
1802	22590
1803	22610
1804	22630
1805	22640
1806	22660
1807	22680
1808	22690
1809	22710
1810	22730
1811	22750
1812	22780
1813	22820
1814	22870
1815	22920
1816	22980
1817	23050
1818	23130
1819	23210
1820	23310
1821	23410
1822	23510
1823	23630
1824	23750
1825	23890
1826	24030
1827	24180
1828	24330
1829	24500
1830	24670
1831	24860
1832	25040
1833	25220
1834	25410
1835	25600
1836	25790
1837	25980
1838	26170
1839	26360
1840	26560
1841	26760
1842	26950
1843	27150
1844	27350
1845	27560
1846	27760
1847	27960
1848	28170
1849	28380
1850	28590
1851	28800
1852	29010
1853	29220
1854	29440
1855	29650
1856	29870
1857	30090
1858	30310
1859	30530
1860	30760
1861	30990
1862	31230
1863	31480
1864	31740
1865	32010
1866	32280
1867	32570
1868	32870
1869	33170
1870	33490
1871	33810
1872	34150
1873	34450
1874	34810
1875	35180
1876	35560
1877	35930
1878	36340
1879	36760
1880	37190
1881	37610
1882	38050
1883	38500
1884	38940
1885	39390
1886	39850
1887	40310
1888	40780
1889	41260
1890	41740
1891	42230
1892	42720
1893	43220
1894	43730
1895	44240
1896	44750
1897	45260
1898	45770
1899	46280
1900	46790
1901	47290
1902	47790
1903	48290
1904	48790
1905	49290
1906	49780
1907	50260
1908	50740
1909	51230
1910	51710
1911	52190
1912	52680
1913	53330
1914	54170
1915	55190
1916	56230
1917	57290
1918	58370
1919	59480
1920	60600
1921	61740
1922	62910
1923	64100
1924	65300
1925	66540
1926	68140
1927	69780
1928	71460
1929	73180
1930	76320
1931	79440
1932	82540
1933	85620
1934	88690
1935	91750
1936	94780
1937	97800
1938	100800
1939	103800
1940	106800
1941	109300
1942	167800
1943	162900
1944	158200
1945	153400
1946	148800
1947	144200
1948	139500
1949	134800
1950	78900
1951	92320
1952	99840
1953	101100
1954	97040
1955	89380
1956	80890
1957	70680
1958	60810
1959	53010
1960	48400
1961	46020
1962	46800
1963	49260
1964	51770
1965	53340
1966	54090
1967	54110
1968	53440
1969	52320
1970	51000
1971	49420
1972	47410
1973	45230
1974	43300
1975	41810
1976	40850
1977	40330
1978	40070
1979	39800
1980	39280
1981	38740
1982	37950
1983	37140
1984	36390
1985	35750
1986	35370
1987	35210
1988	35120
1989	35150
1990	35200
1991	35080
1992	34900
1993	34890
1994	34910
1995	35150
1996	35530
1997	36130
1998	36680
1999	37070
2000	37180
2001	37060
2002	36750
2003	36440
2004	36190
2005	36250
2006	36710
2007	37460
2008	38340
2009	39180
2010	39740
2011	39870
2012	39810
2013	39560
2014	39100
2015	38680
