Although those results are useful in calculating insurance premiums, I don't think those results are meaningful to the individual. Low injuries doesn't mean safer car, it just means fewer PIP claims per insurance year:

Quote:

Injury losses indicate the relative frequencies of injury claims per insured vehicle year filed under personal injury protection coverages in the 17 states that offer such coverages. Also called no-fault insurance, personal injury protection coverages pay for medical/hospital/other expenses incurred by occupants of insured vehicles, up to specified limits, regardless of fault in the crash.

http://www.iihs.org/brochures/ictl/ictl.html




So the 911 injuries could be lower because (a) they are less likely to get into serious accidents because they are not used as daily drivers and/or (b) their owners are more likely to opt out of PIP coverage because their own health insurance coverage is better.