Year	Number of
1800	37980
1801	37980
1802	37980
1803	37980
1804	37980
1805	37980
1806	37980
1807	37980
1808	37980
1809	37980
1810	37980
1811	37980
1812	37990
1813	38000
1814	38020
1815	38040
1816	38060
1817	38090
1818	38120
1819	38160
1820	38200
1821	38250
1822	38300
1823	38350
1824	38410
1825	38470
1826	38540
1827	38610
1828	38680
1829	38760
1830	38850
1831	38940
1832	39020
1833	39110
1834	39200
1835	39290
1836	39380
1837	39470
1838	39560
1839	39650
1840	39740
1841	39830
1842	39920
1843	40010
1844	40100
1845	40190
1846	40280
1847	40370
1848	40460
1849	40550
1850	40640
1851	40740
1852	40850
1853	40950
1854	41050
1855	41150
1856	41250
1857	41360
1858	41460
1859	41560
1860	41660
1861	41780
1862	41900
1863	42020
1864	42160
1865	42310
1866	42460
1867	42630
1868	42800
1869	42980
1870	43180
1871	43380
1872	43590
1873	43760
1874	44000
1875	44240
1876	44490
1877	44730
1878	45020
1879	45310
1880	45610
1881	45900
1882	46200
1883	46500
1884	46800
1885	47110
1886	47420
1887	47730
1888	48040
1889	48360
1890	48670
1891	48990
1892	49310
1893	49640
1894	49960
1895	50280
1896	50600
1897	50920
1898	51240
1899	51540
1900	51840
1901	52140
1902	52420
1903	52700
1904	52980
1905	53240
1906	53510
1907	53750
1908	54000
1909	54240
1910	54470
1911	54700
1912	54930
1913	55210
1914	55560
1915	55960
1916	56360
1917	56760
1918	57160
1919	57560
1920	57960
1921	58360
1922	58770
1923	59180
1924	59590
1925	60000
1926	60420
1927	60840
1928	61260
1929	61680
1930	62390
1931	63100
1932	63810
1933	64510
1934	65200
1935	65900
1936	66590
1937	67280
1938	67960
1939	68640
1940	69320
1941	69990
1942	70660
1943	71320
1944	71980
1945	72640
1946	70970
1947	69550
1948	67880
1949	66450
1950	64790
1951	64940
1952	65200
1953	65640
1954	66040
1955	66610
1956	67130
1957	67580
1958	67950
1959	68310
1960	68640
1961	68900
1962	68830
1963	68640
1964	68330
1965	67890
1966	68220
1967	68480
1968	68680
1969	68780
1970	68670
1971	73210
1972	77620
1973	81910
1974	86210
1975	98390
1976	83810
1977	67160
1978	51120
1979	39530
1980	34240
1981	32740
1982	35790
1983	40930
1984	46040
1985	49530
1986	50580
1987	49000
1988	45850
1989	42900
1990	41250
1991	40680
1992	41560
1993	43390
1994	45290
1995	46310
1996	46110
1997	44630
1998	41960
1999	38560
2000	34880
2001	31320
2002	28040
2003	25380
2004	23480
2005	22040
2006	20930
2007	19870
2008	18790
2009	17570
2010	16170
2011	14750
2012	13300
2013	12020
2014	11020
2015	10260
