Australia's Council for the Humanities, Arts & Social Sciences (CHASS) published a report that includes recommendations for a number of quantitative measures/indicators that scholars in humanities, social sciences, and the arts may use to demonstrate the quality of their work.
APA Journal Statistics and Operations Data
Ulrich’s Web available onsite at New York Public Library Research Divisions and some other CUNY libraries, allows you to look up journal by title, and depending on the publication, discover circulation data, refereed/non-refereed status, editorial board members, audience demographics and review blurbs. There may also be a link to the journal's home page where more information can be found such as article acceptance rate.
WorldCat One of the many uses of this worldwide collection of library catalogs is answering the question, "How many libraries around the world own your book?" which can be an useful piece of data to include in your Form C.
Other suggested descriptors to include in your publications / scholarly output evaluation which can be found via journal website or by contacting journal staff: