Growth of OA-only Journals Using a CC-BY License - OASPA

"Data for the above chart is available for download: OASPA Members CC-BY Growth_Data to 2014  ... A total of 543,611 articles were published with the CC-BY license in open access-only journals by members of OASPA during the period shown above, with 141,232 of those being published in 2014. OASPA members were invited to share their data to update the previous post on this topic. Figures for open access-only titles were supplied by the following members of OASPA as number of CC BY articles published per year since implementation of the license by that publisher ..."