Apr 14, 2023 Annual Report 2022 May 02, 2022 Annual Report 2021 May 27, 2021 Annual 2020 Jul 07, 2020 Annual 2019 May 14, 2018 Form 6-K, filed on May 14, 2018 Apr 30, 2018 Form 6-K, filed on April 30, 2018