In 2021-22, the total number of CVIs increased by nearly half (49.1%) compared to the previous year (which was affected by the pandemic).
Yn 2021-22, gwelwyd canran y cartrefi un aelwyd oedd â pherygl Categori 1 yn gostwng i 43.8%, sef gostyngiad i’r ystod a welwyd cyn y pandemig.