Year	Number of
1800	10070
1801	10070
1802	10070
1803	10070
1804	10070
1805	10070
1806	10070
1807	10070
1808	10070
1809	10070
1810	10070
1811	10080
1812	10100
1813	10140
1814	10180
1815	10250
1816	10320
1817	10410
1818	10510
1819	10630
1820	10760
1821	10900
1822	11060
1823	11240
1824	11430
1825	11640
1826	11870
1827	12110
1828	12370
1829	12650
1830	12940
1831	13260
1832	13580
1833	13910
1834	14250
1835	14600
1836	14960
1837	15320
1838	15700
1839	16080
1840	16470
1841	16870
1842	17280
1843	17710
1844	18140
1845	18580
1846	19040
1847	19510
1848	19990
1849	20480
1850	20980
1851	21500
1852	22030
1853	22580
1854	23130
1855	23700
1856	24290
1857	24890
1858	25510
1859	26140
1860	26790
1861	27470
1862	28170
1863	28910
1864	29680
1865	30480
1866	31310
1867	32180
1868	33080
1869	34020
1870	34670
1871	35290
1872	38850
1873	39820
1874	41000
1875	42240
1876	43520
1877	44710
1878	46250
1879	47720
1880	49230
1881	50810
1882	52580
1883	53750
1884	54800
1885	56010
1886	56520
1887	56910
1888	57940
1889	58800
1890	59680
1891	61340
1892	63250
1893	65700
1894	68470
1895	71130
1896	72100
1897	73110
1898	73900
1899	74710
1900	75540
1901	76640
1902	76150
1903	75270
1904	74430
1905	73620
1906	72810
1907	71760
1908	70720
1909	69680
1910	68640
1911	67530
1912	66440
1913	60830
1914	59140
1915	59300
1916	59780
1917	62470
1918	68640
1919	66750
1920	63220
1921	57430
1922	56010
1923	57180
1924	60900
1925	65230
1926	64930
1927	70590
1928	62280
1929	58540
1930	54480
1931	55090
1932	52310
1933	47500
1934	54850
1935	61830
1936	56030
1937	55190
1938	61590
1939	52740
1940	53280
1941	50200
1942	51430
1943	47580
1944	48780
1945	49990
1946	44600
1947	47960
1948	41810
1949	40760
1950	41860
1951	41380
1952	40390
1953	39420
1954	37720
1955	39500
1956	36230
1957	44660
1958	39790
1959	37720
1960	35740
1961	33860
1962	32060
1963	30370
1964	28790
1965	29040
1966	29950
1967	30280
1968	30640
1969	38320
1970	38660
1971	39120
1972	39650
1973	40020
1974	40140
1975	39920
1976	39360
1977	38240
1978	36570
1979	34290
1980	31650
1981	28880
1982	26150
1983	23740
1984	21910
1985	20720
1986	20200
1987	20230
1988	20470
1989	20580
1990	20410
1991	19910
1992	19210
1993	18340
1994	17560
1995	16810
1996	16120
1997	15440
1998	14870
1999	14400
2000	14020
2001	13840
2002	13760
2003	13630
2004	13370
2005	12900
2006	12390
2007	11850
2008	11420
2009	11020
2010	10680
2011	10420
2012	10220
2013	9973
2014	9770
2015	9513
