During 2016-17, local authorities carried out 6,076(a) assessments under the Housing Health and Safety Rating System, a decrease of 3% on the previous year.
Yn ystod 2016-17, talodd y GIG am 776,827 o brofion golwg y Gwasanaeth Offthalmig Cyffredinol, cynnydd o 1.0% ar y flwyddyn flaenorol.