As the dramatic growth of open access is itself growing, future updates of the Dramatic Growth of Open Access will be released in phases, rather than all on the same day. The quarterly time frame will remain as the date of data capture (March 31, June 30, Sept. 30, and Dec. 31), and the open data edition will be released on this day. Analytic and commentary versions will be released later, usually a week or two after the end of the quarter.
The next releases are:
Sept. 30 (open data - dataverse)
Oct. 14 - International Open Access Day: Analysis and Commentary. This release will be planned for early in the day (possibly October 13 to accomodate different time zones), in case anyone would like to announce the very latest figures on OA Day. OA friends: if you need this information early for planning purposes, send me an e-mail.