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EDU versus non-EDU institutions represented for all packages download data: Mar 1 2011 to Feb 29 2012
Filter by Session (1 session = 30 minutes)

EDU institutions = US and international degree granting universities, colleges and technical schools and EDU entities. Undetermined/misc data = crawlers, ISPs, unresolved IP addresses, etc.
Note: The chart above is interactive - click on the pie pieces to see the data.