Year	Number of
1800	2530
1801	2530
1802	2530
1803	2530
1804	2530
1805	2530
1806	2530
1807	2530
1808	2530
1809	2530
1810	2530
1811	2531
1812	2533
1813	2535
1814	2538
1815	2543
1816	2548
1817	2554
1818	2561
1819	2569
1820	2577
1821	2587
1822	2597
1823	2608
1824	2620
1825	2633
1826	2647
1827	2663
1828	2678
1829	2695
1830	2713
1831	2732
1832	2750
1833	2770
1834	2789
1835	2808
1836	2827
1837	2847
1838	2867
1839	2887
1840	2907
1841	2926
1842	2947
1843	2967
1844	2988
1845	3008
1846	3029
1847	3050
1848	3071
1849	3093
1850	3114
1851	3135
1852	3156
1853	3177
1854	3199
1855	3220
1856	3242
1857	3264
1858	3286
1859	3308
1860	3330
1861	3353
1862	3375
1863	3398
1864	3421
1865	3444
1866	3467
1867	3490
1868	3514
1869	3538
1870	3562
1871	3586
1872	3610
1873	3633
1874	3658
1875	3683
1876	3708
1877	3732
1878	3757
1879	3782
1880	3808
1881	3778
1882	3748
1883	3718
1884	3687
1885	3656
1886	3623
1887	3590
1888	3550
1889	3516
1890	3482
1891	3070
1892	3158
1893	3246
1894	3253
1895	3258
1896	3371
1897	3478
1898	3581
1899	3678
1900	3771
1901	3510
1902	3257
1903	3290
1904	3338
1905	3211
1906	3568
1907	4473
1908	3413
1909	3548
1910	3962
1911	3836
1912	3162
1913	2934
1914	2742
1915	2919
1916	2961
1917	3042
1918	3576
1919	3112
1920	2589
1921	3597
1922	3586
1923	3478
1924	3309
1925	3160
1926	3310
1927	3352
1928	3987
1929	3165
1930	3266
1931	3184
1932	3282
1933	3800
1934	4281
1935	3070
1936	3096
1937	3215
1938	4736
1939	3361
1940	2898
1941	2291
1942	2802
1943	4516
1944	4439
1945	3174
1946	2709
1947	2697
1948	2744
1949	2735
1950	2661
1951	2525
1952	2449
1953	2395
1954	2337
1955	2262
1956	2194
1957	2106
1958	2019
1959	1949
1960	1910
1961	1913
1962	1952
1963	1999
1964	2018
1965	1991
1966	1928
1967	1827
1968	1707
1969	1618
1970	1584
1971	1606
1972	1689
1973	1803
1974	1912
1975	1982
1976	2006
1977	1996
1978	1956
1979	1902
1980	1841
1981	1786
1982	1727
1983	1665
1984	1600
1985	1536
1986	1473
1987	1406
1988	1336
1989	1271
1990	1216
1991	1156
1992	1094
1993	1034
1994	984
1995	950
1996	934
1997	927
1998	921
1999	907
2000	882
2001	845
2002	806
2003	761
2004	716
2005	668
2006	616
2007	563
2008	517
2009	486
2010	478
2011	492
2012	532
2013	582
2014	623
2015	642