Newbuild, annual: April 2020 to March 2021 21 May 2021 9 June 2021
Enw'r brechiad yw: Pfizer Biotech o 7 Rhag 2021, AstraZeneca o 4 Ion 2021, Moderna (neu Moderna half) o 4 Ion 2021, Janssen o 1 Maw 2021, Novavax o 1 Ion 2023