Roller Coasters kill 4 people per year
全球每年平均4人死于云霄飞车
Overall, the risk of injury while riding a roller coaster is very low. In the U.S.people take about 900 million rides per year, and only about 1 in 124,000 result in an injury. However, studies show that between the years 1994-2004 there were 40 deaths from roller coasters total, and currently the annual death rate is about 4 per year in the U.S.A.
总的来说,乘坐云霄飞车的危险性很小。在美国,每年有将近900,000,000人乘坐云霄飞车,平均124,000人中只有1人受伤。但是,研究表明,1994到2004年间,总共有40人死于云霄飞车,死亡率已经达到了每年4人。