“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.
Chemistry256Nursing221Economics, Econometrics and Finance113Biochemistry, Genetics and Molecular Biology93Environmental Science87Agricultural and Biological Sciences64Technology: Chemical technology: Oils, fats, and waxes1