Year	Number of
1800	1279
1801	1279
1802	1279
1803	1279
1804	1279
1805	1279
1806	1279
1807	1279
1808	1279
1809	1279
1810	1279
1811	1279
1812	1280
1813	1281
1814	1282
1815	1283
1816	1285
1817	1287
1818	1289
1819	1292
1820	1294
1821	1298
1822	1301
1823	1305
1824	1309
1825	1313
1826	1318
1827	1322
1828	1328
1829	1333
1830	1339
1831	1345
1832	1351
1833	1357
1834	1363
1835	1369
1836	1375
1837	1382
1838	1388
1839	1394
1840	1401
1841	1407
1842	1413
1843	1420
1844	1426
1845	1432
1846	1439
1847	1445
1848	1452
1849	1459
1850	1465
1851	1468
1852	1471
1853	1474
1854	1477
1855	1480
1856	1484
1857	1487
1858	1490
1859	1493
1860	1496
1861	1499
1862	1502
1863	1505
1864	1508
1865	1511
1866	1514
1867	1517
1868	1520
1869	1523
1870	1526
1871	1529
1872	1532
1873	1535
1874	1538
1875	1541
1876	1544
1877	1547
1878	1550
1879	1553
1880	1557
1881	1560
1882	1563
1883	1565
1884	1568
1885	1571
1886	1574
1887	1577
1888	1580
1889	1583
1890	1586
1891	1589
1892	1592
1893	1595
1894	1598
1895	1600
1896	1603
1897	1606
1898	1608
1899	1610
1900	1612
1901	1613
1902	1614
1903	1615
1904	1616
1905	1616
1906	1616
1907	1616
1908	1616
1909	1615
1910	1614
1911	1614
1912	1612
1913	1611
1914	1610
1915	1609
1916	1607
1917	1606
1918	1611
1919	1615
1920	1618
1921	1621
1922	1624
1923	1627
1924	1631
1925	1634
1926	1637
1927	1640
1928	1643
1929	1647
1930	1644
1931	1641
1932	1638
1933	1636
1934	1633
1935	1630
1936	1627
1937	1624
1938	1621
1939	1619
1940	1616
1941	1613
1942	1610
1943	1607
1944	1604
1945	1460
1946	1326
1947	1201
1948	1080
1949	971
1950	868
1951	862
1952	870
1953	879
1954	888
1955	897
1956	906
1957	916
1958	925
1959	934
1960	923
1961	897
1962	872
1963	849
1964	826
1965	806
1966	781
1967	752
1968	725
1969	705
1970	691
1971	687
1972	689
1973	689
1974	680
1975	661
1976	633
1977	599
1978	562
1979	530
1980	505
1981	488
1982	475
1983	468
1984	464
1985	461
1986	459
1987	460
1988	462
1989	464
1990	464
1991	464
1992	460
1993	456
1994	453
1995	449
1996	448
1997	448
1998	449
1999	451
2000	455
2001	463
2002	474
2003	488
2004	504
2005	518
2006	533
2007	542
2008	547
2009	545
2010	541
2011	531
2012	519
2013	504
2014	485
2015	470