as of December 31, 2022as of September 30, 2022as of June 30, 2022as of March 31, 2022as of December 31, 2021as of September 30, 2021as of June 30, 2021as of March 31, 2021as of December 31, 2020as of September 30, 2020as of May 31, 2020as of January 31, 2020as of June 30, 2019