Yearly Citation Totals from 2013 MEDLINE/PubMed Baseline: 21,508,439 Citations Found

1809	1811	1812	1813	1814	1815	1816	1817	1818	1819	1821	1823	1827	1828	1829	1831	1832	1833
22	33	24	27	29	29	43	25	33	31	35	51	46	14	14	21	17	13
1835	1837	1838	1839	1840	1841	1842	1843	1844	1845	1846	1847	1848	1849	1850	1851	1852	1853
21	18	25	24	146	526	662	564	339	280	279	241	245	211	215	233	237	230
1854	1855	1856	1857	1858	1859	1860	1861	1862	1863	1864	1865	1866	1867	1868	1869	1870	1871
140	178	249	257	235	223	169	202	191	169	159	134	144	366	513	423	428	489
1872	1873	1874	1875	1876	1877	1878	1879	1880	1881	1882	1883	1884	1885	1886	1887	1888	1889
494	546	427	441	451	395	485	504	784	922	479	1,141	1,345	1,427	1,463	1,418	1,167	1,506
1890	1891	1892	1893	1894	1895	1896	1897	1898	1899	1900	1901	1902	1903	1904	1905	1906	1907
1,041	894	1,367	1,642	1,125	1,491	1,794	1,791	1,773	1,475	1,418	1,628	1,725	1,945	1,899	2,115	2,069	2,058
1908	1909	1910	1911	1912	1913	1914	1915	1916	1917	1918	1919	1920	1921	1922	1923	1924	1925
2,694	2,956	3,014	3,333	3,312	3,535	3,531	3,325	3,134	2,890	2,856	3,089	3,297	3,329	3,472	3,761	4,160	4,393
1926	1927	1928	1929	1930	1931	1932	1933	1934	1935	1936	1937	1938	1939	1940	1941	1942	1943
4,693	5,298	4,922	5,010	4,905	4,828	5,013	5,020	4,988	5,090	4,824	4,797	5,249	5,046	4,520	4,331	4,259	4,184
1944	1945	1946	1947	1948	1949	1950	1951	1952	1953	1954	1955	1956	1957	1958	1959	1960	1961
4,374	20,190	53,788	64,741	70,458	61,567	82,264	102,081	107,427	107,980	105,134	108,032	106,501	111,041	108,888	109,405	111,518	119,531
1962	1963	1964	1965	1966	1967	1968	1969	1970	1971	1972	1973	1974	1975	1976	1977	1978	1979
125,325	141,051	161,477	176,601	179,505	191,454	207,405	214,347	218,077	222,366	226,418	230,429	234,205	247,838	253,594	260,444	270,737	279,778
1980	1981	1982	1983	1984	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997
278,226	280,793	292,479	306,379	314,941	324,983	338,475	355,852	373,810	389,392	396,536	397,471	401,624	407,767	418,258	428,077	432,429	444,672
1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013
458,626	472,274	499,074	529,911	550,388	577,415	613,006	649,501	677,167	700,524	736,837	764,441	793,461	825,639	480,631	34