1. Nigeria. 2. Zambia 3. Haiti 4. Tanzania 5. Central African Republic 6. Chad 7. Liberia 8. Mozambique 9. Uganda 10. Kenya 11. Ethiopia 12. Cameroon 13. Guatemala 14. Democratic Republic of the Congo 15. Rwanda
The first civilized country on the list is Japan, at 50% of the population who attends at least weekly.
Since you believe Church attendance makes people behave so well, let me know which of those 15 countries listed above you will move to and leave you door unlocked at night.
Excuse me but those are NOT the countries with the highest church attendance. They are the countries with the highest proportion of Christians attending church.
Change it to country wide worship and the results are not much different: