The list of most dangerous countries, as per murder rate, is dominated by Caribbean and Latin American countries (Honduras #1 by far), with a few African nations there as well. Papua New Guinea does not seem to have reliable stats, as it is likely among the most dangerous. Just check out the following travel advice for it:
"Incidents of robbery and carjacking can be coordinated based on known chokepoints. Criminal gangs use any means necessary to get you out of your car for the purpose of robbery. Two recent tactics include:
The Baby Car Seat or Crying Baby Hoax: Criminals place a car seat with a fake baby or a lone child crying by the roadside and wait for someone to stop and check on the abandoned baby. The location of this hoax is usually on a roadside or grassy area where the victim can be captured and dragged away unnoticed, assaulted, and robbed.
Egging the Windshield: If you are driving at night and eggs are thrown at your windshield, do not stop to check for damage. Do not apply water or operate the windscreen wiper, as eggs mixed with water become milky and impossible to see through, forcing you to stop and likely become a victim."
