Jim Fisher said:
"In 2000 there was only one fatality in a ride accident at a US amusement park."
And if, God forbid, there are 2 fatalities in 2001, the media will jump on this with headlines like "Park Deaths rise 100% from Last Year!"
As was said, its mostly because people don't think! Also, what counts as an "injury?" Is it anything that needs first aid? or is it anything that is "major?"