Year	Number of
1800	36300
1801	36300
1802	36300
1803	36300
1804	36300
1805	36300
1806	36300
1807	36340
1808	36340
1809	36340
1810	36340
1811	36360
1812	36380
1813	36420
1814	36470
1815	36540
1816	36610
1817	36700
1818	36810
1819	36920
1820	37050
1821	37250
1822	37400
1823	37570
1824	37760
1825	37960
1826	38170
1827	38400
1828	38640
1829	38900
1830	39170
1831	39450
1832	39740
1833	40030
1834	40320
1835	40660
1836	40960
1837	41260
1838	41560
1839	41860
1840	42160
1841	42470
1842	42780
1843	43090
1844	43400
1845	43720
1846	44040
1847	44360
1848	44680
1849	45060
1850	45390
1851	45760
1852	46120
1853	46490
1854	46860
1855	47240
1856	47610
1857	47990
1858	48380
1859	48760
1860	49150
1861	49540
1862	49940
1863	50400
1864	50810
1865	51210
1866	51620
1867	52030
1868	52450
1869	52870
1870	53290
1871	53710
1872	54140
1873	54570
1874	55000
1875	55440
1876	55880
1877	56390
1878	56840
1879	57300
1880	57750
1881	58210
1882	58670
1883	59140
1884	59600
1885	60080
1886	60560
1887	61030
1888	61520
1889	62010
1890	62500
1891	63080
1892	63590
1893	64090
1894	64600
1895	65110
1896	65620
1897	66130
1898	66630
1899	67120
1900	67610
1901	68090
1902	68560
1903	69020
1904	69480
1905	70020
1906	70460
1907	70880
1908	71300
1909	71720
1910	72130
1911	72530
1912	72940
1913	73340
1914	73750
1915	74150
1916	74560
1917	74970
1918	75320
1919	75780
1920	76150
1921	76510
1922	76880
1923	77250
1924	77620
1925	77990
1926	78360
1927	78630
1928	79010
1929	79280
1930	80700
1931	82110
1932	83510
1933	84910
1934	86300
1935	87680
1936	89040
1937	90410
1938	91760
1939	93110
1940	94450
1941	95240
1942	96000
1943	96740
1944	97170
1945	97860
1946	98550
1947	99210
1948	99540
1949	100200
1950	100800
1951	100800
1952	101000
1953	101000
1954	100800
1955	100500
1956	99980
1957	99270
1958	98390
1959	97470
1960	96490
1961	95500
1962	94460
1963	93420
1964	92390
1965	91370
1966	90400
1967	89460
1968	88720
1969	88190
1970	87890
1971	88830
1972	89930
1973	91180
1974	92580
1975	94120
1976	95800
1977	97600
1978	99500
1979	101500
1980	94590
1981	97440
1982	100300
1983	103000
1984	105700
1985	108300
1986	111100
1987	113600
1988	116100
1989	119000
1990	122500
1991	126100
1992	130100
1993	134000
1994	137900
1995	141500
1996	145200
1997	148100
1998	150700
1999	153600
2000	156900
2001	160100
2002	163600
2003	167000
2004	170500
2005	173700
2006	176300
2007	177700
2008	178400
2009	178400
2010	178100
2011	177000
2012	175400
2013	173500
2014	171600
2015	169300
