Data is up-to-date as of December 2012.
This set of spreadsheets contains data from scheduled SFX queries for the 2012 calendar year. This post will be updated as new data is added to the spreadsheets.
Unfamiliar with SFX's measurement tools for usage - the request and the clickthrough? Learn more in this Data Stories post. The most relevant reports for examining bX usage data are Requests&ClicksPerSource, Requests&ClicksPerService, and JournalRequestsFrombXSource.
Confused by the "No Title" entry in the Top100Journals report? Discover the reason for "No Title" here.
Distinct number of full-text e-journals accessible through SFX: 82071 (as of 12/10/12)