Use "casualty rate" in a sentence

1. ‘Road Casualty figures for 2003 show that serious accidents fell by 15 to 82 compared to the previous year.’ ‘Center court was now a mass Casualty scene, with injured personnel streaming out of Corridors 3 and 4 and wounded lying everywhere.’ ‘World War I saw a civilian Casualty rate of about 15 per cent (of total casualties).’