Administration and estates staff (FTE) have increased by 5,515 (34.3%) since 2009, and by 1,861 (9.4%) since 30 September 2020, to 21,583 at 30 September 2021.
Bu cynnydd o 5,515 (34.3%) yn nifer y staff gweinyddol ac ystadau (cyfwerth ag amser llawn) ers 2009, a chynnydd o 1,861 (9.4%) ers 30 Medi 2020, i gyfanswm o 21,583 ar 30 Medi 2021.