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United States National Library of Medicine National Institutes of Health

Yearly Citation Count Totals from 2007 MEDLINE/PubMed Baseline: 16,120,074 Citations Found

1865 1866 1868 1869 1870 1871 1879 1884 1887 1890 1893 1896 1899 1902 1903 1904 1905 1906
3 11 24 16 25 21 19 26 37 33 22 44 21 36 31 30 26 66
1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924
63 64 60 32 75 83 113 106 275 328 293 234 255 312 266 286 313 426
1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942
463 541 592 639 550 585 632 713 798 764 847 810 767 761 733 687 602 605
1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960
624 601 599 646 677 882 15,789 81,121 101,303 106,439 107,367 103,857 106,721 105,142 109,827 107,555 107,944 108,975
1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978
117,311 124,568 140,214 159,107 173,752 174,951 186,902 203,918 210,883 214,092 218,998 222,590 226,394 230,088 244,353 249,298 255,913 265,630
1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996
274,372 272,475 274,503 285,512 299,286 308,191 318,450 330,915 348,551 366,086 382,089 389,011 389,852 392,884 399,293 408,387 417,725 423,470
1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
433,994 448,575 461,379 489,866 518,683 539,937 567,109 594,560 602,607 381,088 29

Last updated: 04 January 2007
First published: 04 January 2007
Metadata| Permanence level: Permanence Not Guaranteed