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Roy, and any other OCLC-ites here, is there an update to the numbers in the 2001 article on WorldCat Works, or is that data relatively easily obtainable? [1] At that time, the article reported: Manifestations (records) 46,767,913 Works 32,000,000 Average number of Works per Manifestation 1.5 Single manifestation 78% Number of works with 7 manifestations or less 99% Number of works with more than 20 manifestations 1% Since then the number of manifestations has quintupled (2011 annual report says ~236 million), although the number of works per manifestation has not changed greatly (1.4). I would be interesting in knowing if these numbers have changed: * Single manifestation 78% * Number of works with 7 manifestations or less 99% * Number of works with more than 20 manifestations 1% Thanks! kc [1] Bennett, Rick; Brian F. Lavoie; Edward T. O'Neill. The concept of a work in WorldCat: an application of FRBR. Library Collections, Acquisitions, and Technical Services 27,1 (Spring 2003). http://www.oclc.org/research/publications/archive/2003/lavoie%5Ffrbr.pdf -- Karen Coyle [log in to unmask] http://kcoyle.net ph: 1-510-540-7596 m: 1-510-435-8234 skype: kcoylenet