Year	Number of
1800	1924
1801	1924
1802	1924
1803	1924
1804	1924
1805	1924
1806	1924
1807	1924
1808	1924
1809	1924
1810	1924
1811	1924
1812	1924
1813	1924
1814	1924
1815	1924
1816	1924
1817	1924
1818	1924
1819	1924
1820	1924
1821	1924
1822	1924
1823	1924
1824	1924
1825	1924
1826	1924
1827	1924
1828	1924
1829	1924
1830	1924
1831	1924
1832	1924
1833	1924
1834	1924
1835	1924
1836	1924
1837	1924
1838	1924
1839	1924
1840	1924
1841	1924
1842	1924
1843	1924
1844	1924
1845	1924
1846	1924
1847	1924
1848	1924
1849	1924
1850	1924
1851	1923
1852	1923
1853	1922
1854	1921
1855	1921
1856	1920
1857	1920
1858	1919
1859	1918
1860	1918
1861	1918
1862	1918
1863	1919
1864	1920
1865	1922
1866	1925
1867	1928
1868	1931
1869	1935
1870	1940
1871	1945
1872	1950
1873	1954
1874	1961
1875	1968
1876	1977
1877	1984
1878	1994
1879	2004
1880	2015
1881	2025
1882	2036
1883	2046
1884	2057
1885	2068
1886	2079
1887	2089
1888	2100
1889	2111
1890	2122
1891	2133
1892	2145
1893	2156
1894	2167
1895	2178
1896	2189
1897	2200
1898	2211
1899	2221
1900	2232
1901	2241
1902	2250
1903	2260
1904	2269
1905	2277
1906	2285
1907	2293
1908	2300
1909	2307
1910	2314
1911	2321
1912	2328
1913	2338
1914	2352
1915	2371
1916	2389
1917	2408
1918	2428
1919	2447
1920	2468
1921	2489
1922	2510
1923	2532
1924	2553
1925	2575
1926	2600
1927	2629
1928	2655
1929	2684
1930	2733
1931	2781
1932	2829
1933	2876
1934	2924
1935	2971
1936	3018
1937	3064
1938	3111
1939	3157
1940	2991
1941	2829
1942	2673
1943	2520
1944	2371
1945	2225
1946	2081
1947	1941
1948	1803
1949	1667
1950	1644
1951	1555
1952	1444
1953	1373
1954	1338
1955	1338
1956	1369
1957	1431
1958	1524
1959	1350
1960	1416
1961	1463
1962	1563
1963	1688
1964	1799
1965	1885
1966	1960
1967	2012
1968	2061
1969	2119
1970	2188
1971	2295
1972	2411
1973	2503
1974	2539
1975	2502
1976	2376
1977	2197
1978	2000
1979	1818
1980	1675
1981	1573
1982	1484
1983	1404
1984	1323
1985	1239
1986	1160
1987	1075
1988	974
1989	867
1990	749
1991	792
1992	587
1993	523
1994	486
1995	479
1996	468
1997	490
1998	523
1999	553
2000	573
2001	567
2002	542
2003	514
2004	502
2005	518
2006	552
2007	611
2008	678
2009	736
2010	763
2011	753
2012	725
2013	677
2014	634
2015	598
