Among the 140 countries, Iceland came First - most peaceful country in the world, followed by fellow Scandinavian countries, Denmark, Norway. When it comes to Papua New Guinea, it is ranked 95, ahead of USA, Russia, Philippines, India, and many African & middle Eastern countries. Well, I don't know if I can cerebrate or be sad about it.
There is virtually non-risk of terrorism nor military conflict here, but it is true that urban centres have crime problem which makes the rank lower. But if you are staying in the remote village of Papua New Guinea, you will feel that it is one of the most peaceful places in the world.
For detail of GPI, please check following site.