OA by the numbers

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  • This is a list of numbers measuring the status or growth of open access.
  • The format is: Number. Date [last checked or verified]. Annotation. Please use links whenever possible so that users can verify or update the numbers.
  • Peter Suber started this list on Wikipedia in early 2005. Wikipedians deleted it twice and then chopped it into pieces. We restored it here on OAD, but had to start with an old version of the file. We need your help to update the numbers already on the list and add new ones.
  • If these numbers don't tell the whole story, it's better to add new numbers to tell the rest of the story than to delete numbers already here.

Contents

OA journals (Gold OA)

  • 4,793. March 10, 2009. The number of OA journals (not all peer-reviewed) listed in Open J-Gate.
  • 21,101. March 10, 2009. The number of "free e-journals" (not all peer-reviewed) listed in EZB.
  • 14.7. August 4, 2006. Impact factor for PLoS Biology, the highest for the category of general biology. See the PLoS Biology information page.

OA repositories (Green OA)

  • 1,462. September 6, 2009. Number of OA, OAI-compliant repositories listed by OpenDOAR (Directory of Open Access Repositories).
  • 1,448. September 6, 2009. Number of OA, OAI-compliant repositories listed by ROAR (Registry of Open Access Repositories).
  • 1,146. December 31, 2006. Number of OA, OAI-compliant repositories listed by OpenArchive.edu.
  • 962 / 16,154,594 records. May 13, 2008. Numbers of OA, OAI-compliant repositories / records harvested (indexed and searched) by OAIster.
  • 904 / 19,041,129 records. May 13, 2008. Numbers of OA, OAI-compliant repositories / records harvested (indexed and searched) by ScientificCommons.org.
  • 477,426. May 13, 2008. Number of articles on deposit at arXiv. The number is posted on the upper left corner of the arXiv home page.
  • 2,542,194. December 11, 2008. Number of free fulltext articles on deposit at PubMed Central. To update this number, search PubMed with a limit to "Links to Free Full Text " from the Entrez PubMed search box.
  • 8,413,363 May 13, 2008. Total number of articles in Entrez PubMed with "Links to Full Text".
  • 767,558. December 12, 2008. Number of full-text articles harvested from the Web by Citeseer. Figure at the bottom of Citeseer's home page.
  • 3.8. January 2006. Rate of compliance (as a percentage) with the NIH request that articles based on NIH-funded research be deposited in PubMed Central, during the first eight months of the NIH public access policy (May 2 - December 31, 2005), according to the NIH's progress report to Congress.

OA books

  • 92. February 15, 2006. Percentage of books not generating revenues for their publishers or copyright holders, according to Daniel Clancy, Engineering Director for the Google Book Search Project, in a talk at Stanford University, summarized by James Jacobs.

OA policies

  • 53. Sept. 1, 2008. Total OA Mandates. ROARMAP. See ROARMAP for updates.
  • 62.5. May 21, 2008. Percentage of surveyed non-OA journals permitting authors to self-archive their postprints, according to Eprints statistics.
  • 91.2. May 21, 2008. Percentage of surveyed non-OA journals permitting authors to self-archive their preprints, postprints, or both, according to Eprints statistics.
  • 81. May 2005. Percentage of authors who would "willingly" comply with a mandate from their funder or employer to self-archive their research articles, according to Alma Swan and Sheridan Brown, Open access self-archiving: An author study.
  • 18. February 5, 2006. Number of research institutions signing the ROARMAP.
  • 7. August 26, 2006. Number of research institutions mandating OA to their research output, according to the ROARMAP.
  • 5. August 26, 2006. Number of funding agencies mandating OA to the research they fund, according to the ROARMAP.
  • 69. February 12, 2006. Number of institutional members of the Alliance for Taxpayer Access. The ATA doesn't provide this number; users have to count the institutions listed.

Journal pricing crisis

  • 227 / 64. Percentage increases in journal prices (serial unit cost) / inflation rate (consumer price index) from 1986 to 2002, according to ARL statistics.
  • 238-537 / 65. Updated percentage increase comparison: data from the Library Journal Annual Periodicals Price Surveys showed that the increase in scholarly journal prices from 1990 to 2008 ranged from 238% (astronomy) to 537% (general science), which is 3.7 and 8.3 times the increase in the consumer price index, respectively. See here for details and data.
  • 56. Percentage of research institutions in the poorest countries (per-capita gross national product of less than $1,000/year) with no current subscriptions to international journals. According to Barbara Aronson in the New England Journal of Medicine, March 2004.
    • 34. Percent of institutions in countries in the next tier of poverty (per-capita GNP of $1,000 to $3,000/year) with no current subscriptions to international journals. Ibid.
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