CiteScore 2020 counts the citations received in 2017-2020 to articles, reviews, conference papers, book chapters and data papers published in 2017-2020, and divides this by the number of publications published in 2017-2020.
Cite score of the journAL IN sCOPUS shows a continues increase from 2017, 2018 and 2019 from, 1.2, 1.6, 2.5 to 3.1. We are waiting for this trend in 2021, too.