Figure 5: Number of secondary fires by Fire and Rescue Authority, 2001-02 to 2022-23 [p]
Ffigur 5: Nifer y peryglon Categori 2 a gafwyd mewn tai amlfeddiannaeth, yn ôl y math o berygl, 2021-22 [Nodyn 1] [Nodyn 2]