If that were true the number of fires would be going down every year. However on average for the last 5-10 years the number of fires is pretty constant. See: h

If that were true the number of fires would be going down every year. However on average for the last 5-10 years the number of fires is pretty constant. See: https://www.statista.com/statistics/377006/nmber-of-us-highway-vehicle-fires/ https://www.statista.com/statistics/377006/nmber-of-us-highw... If anything there's a gradual trend of increasing number of fires in the last 6-7 years.