There were 27 accident cluster sites which resulted in 124 accidents with a personal injury and of these 13 were KSI accidents.
Roedd 27 safle clwstwr damweiniau a arweiniodd at 124 damwain a achosodd anafiadau personol ac roedd 13 o'r rheini'n ddamweiniau lle cafodd pobl eu lladd neu eu hanafu'n ddifrifol.