Since 2001-02, 77% of fatal casualties have occurred in dwelling fires, equating to a total of 370 out of 478 fatalities.
Ers 2001-02, bu 77% o’r anafiadau angheuol mewn tanau mewn anheddau, sy’n cyfateb i gyfanswm o 342 o’r 443 o farwolaethau.