Year	Number of
1800	1388
1801	1388
1802	1388
1803	1388
1804	1388
1805	1388
1806	1388
1807	1388
1808	1388
1809	1388
1810	1388
1811	1389
1812	1389
1813	1390
1814	1390
1815	1392
1816	1393
1817	1394
1818	1396
1819	1398
1820	1400
1821	1403
1822	1406
1823	1409
1824	1412
1825	1415
1826	1419
1827	1423
1828	1427
1829	1431
1830	1436
1831	1440
1832	1445
1833	1450
1834	1455
1835	1459
1836	1464
1837	1469
1838	1474
1839	1479
1840	1484
1841	1489
1842	1494
1843	1498
1844	1503
1845	1509
1846	1514
1847	1519
1848	1523
1849	1529
1850	1534
1851	1539
1852	1544
1853	1549
1854	1555
1855	1560
1856	1565
1857	1571
1858	1576
1859	1582
1860	1587
1861	1592
1862	1598
1863	1603
1864	1608
1865	1614
1866	1619
1867	1625
1868	1630
1869	1636
1870	1641
1871	1647
1872	1653
1873	1658
1874	1664
1875	1670
1876	1675
1877	1681
1878	1686
1879	1692
1880	1698
1881	1703
1882	1709
1883	1715
1884	1721
1885	1727
1886	1732
1887	1738
1888	1745
1889	1750
1890	1756
1891	1762
1892	1768
1893	1774
1894	1780
1895	1786
1896	1792
1897	1798
1898	1803
1899	1808
1900	1813
1901	1817
1902	1822
1903	1826
1904	1829
1905	1833
1906	1836
1907	1839
1908	1841
1909	1844
1910	1846
1911	1848
1912	1850
1913	1852
1914	1853
1915	1855
1916	1857
1917	1859
1918	1860
1919	1862
1920	1883
1921	1923
1922	1983
1923	2045
1924	2109
1925	2175
1926	2243
1927	2313
1928	2386
1929	2460
1930	2522
1931	2583
1932	2644
1933	2705
1934	2765
1935	2825
1936	2884
1937	2944
1938	3003
1939	3061
1940	3119
1941	3177
1942	3235
1943	3293
1944	3351
1945	3408
1946	3382
1947	3354
1948	3325
1949	3284
1950	3252
1951	3252
1952	3247
1953	3235
1954	3217
1955	3193
1956	3165
1957	3131
1958	3095
1959	3064
1960	3037
1961	3018
1962	3008
1963	3002
1964	2995
1965	2980
1966	2947
1967	2891
1968	2812
1969	2703
1970	2579
1971	2431
1972	2268
1973	2130
1974	1994
1975	1876
1976	1794
1977	1757
1978	1772
1979	1841
1980	2064
1981	2196
1982	2345
1983	2236
1984	2513
1985	2726
1986	2956
1987	3105
1988	3181
1989	3214
1990	3227
1991	3232
1992	3204
1993	3162
1994	3123
1995	3104
1996	3084
1997	3084
1998	3095
1999	3100
2000	3095
2001	3071
2002	3037
2003	2995
2004	2957
2005	2927
2006	2907
2007	2891
2008	2873
2009	2860
2010	2841
2011	2815
2012	2776
2013	2734
2014	2701
2015	2655