Independent monitoring of the cleanliness of streets, carried out by Keep Wales Tidy, demonstrates that since 2007-08 the average Cleanliness Index figure has risen year on year.
Ers 2007-08, yn ôl gwaith annibynnol i fonitro glanweithdra strydoedd, a gynhaliwyd gan Cadwch Gymru’n Daclus, mae cyfartaledd y Mynegai Glanweithdra wedi cynyddu bob blwyddyn.