15 broken ribs
AS another poster noted, CPR often causes broken ribs.
“Dr. Michael Sayre, a spokesperson for the American Heart Association and a professor at the University of Washington in Seattle, said broken ribs are to be expected when doing CPR and the worry of causing a break shouldn’t deter people from helping someone in cardiac arrest.”
http://www.reuters.com/article/us-cpr-often-leads-to-broken-ribs-idUSBRE8721IF20120803
“AS another poster noted, CPR often causes broken ribs.”
FIFTHTEEN?