Year	Number of
1800	31790
1801	31790
1802	31790
1803	31790
1804	31790
1805	31790
1806	31790
1807	31790
1808	31840
1809	31840
1810	31840
1811	31850
1812	31870
1813	31900
1814	31950
1815	32010
1816	32070
1817	32150
1818	32240
1819	32350
1820	32460
1821	32590
1822	32720
1823	32880
1824	33090
1825	33260
1826	33450
1827	33650
1828	33860
1829	34090
1830	34320
1831	34570
1832	34830
1833	35080
1834	35340
1835	35590
1836	35850
1837	36120
1838	36380
1839	36640
1840	36970
1841	37240
1842	37510
1843	37780
1844	38060
1845	38340
1846	38620
1847	38900
1848	39180
1849	39470
1850	39750
1851	40040
1852	40340
1853	40630
1854	40920
1855	41280
1856	41580
1857	41890
1858	42190
1859	42500
1860	42810
1861	43120
1862	43440
1863	43750
1864	44070
1865	44390
1866	44720
1867	45040
1868	45370
1869	45700
1870	46030
1871	46440
1872	46780
1873	47110
1874	47450
1875	47800
1876	48140
1877	48490
1878	48840
1879	49200
1880	49550
1881	49910
1882	50270
1883	50640
1884	51000
1885	51370
1886	51820
1887	52190
1888	52570
1889	52960
1890	53340
1891	53730
1892	54120
1893	54520
1894	54910
1895	55310
1896	55700
1897	56090
1898	56480
1899	56860
1900	57230
1901	57600
1902	58040
1903	58400
1904	58740
1905	59080
1906	59410
1907	59730
1908	60050
1909	60360
1910	60660
1911	60960
1912	61270
1913	61580
1914	61880
1915	62190
1916	62500
1917	62810
1918	63220
1919	63530
1920	63840
1921	64160
1922	64480
1923	64790
1924	65110
1925	65430
1926	65760
1927	65980
1928	66300
1929	66630
1930	67410
1931	68180
1932	68940
1933	69710
1934	70470
1935	71220
1936	71970
1937	72720
1938	73460
1939	74200
1940	74930
1941	75350
1942	75760
1943	76160
1944	75370
1945	76000
1946	76620
1947	77200
1948	77710
1949	78270
1950	72280
1951	72690
1952	72760
1953	72540
1954	72440
1955	72640
1956	73090
1957	73370
1958	73320
1959	73070
1960	73170
1961	73630
1962	73590
1963	73360
1964	73410
1965	74000
1966	74980
1967	76110
1968	77490
1969	78940
1970	80500
1971	82010
1972	82500
1973	81920
1974	80600
1975	79070
1976	77620
1977	76230
1978	75310
1979	74980
1980	75110
1981	75800
1982	76300
1983	76620
1984	76800
1985	76920
1986	76930
1987	76680
1988	76750
1989	77440
1990	78850
1991	80760
1992	83020
1993	85190
1994	87080
1995	88710
1996	90180
1997	91120
1998	92090
1999	93000
2000	94000
2001	94800
2002	94870
2003	94130
2004	92410
2005	90040
2006	87120
2007	83520
2008	79640
2009	75710
2010	72170
2011	69140
2012	66480
2013	64090
2014	62100
2015	60480
