“2-yr mean citedness” is the OpenAlex field summary_stats.2yr_mean_citedness (CC0): mean citations per paper over a two-year window. It is a raw bibliometric field, not a journal rating, and is not used for default ranking.
Social Sciences8Arts and Humanities5Environmental Science2Economics, Econometrics and Finance1History (General) and history of Europe: History (General)1History America: Latin America. Spanish America1Social Sciences: Economic history and conditions1Social Sciences: Social history and conditions. Social problems. Social reform1