I'm also surprised that Nigeria is the least among all of them with the way a lot of things are happening with a lot of Nigerians, cases of suicide, theft and other insane things as a result of gambling addiction...Well, maybe there are things that are going on as a result of gambling addiction in other countries we are not aware of as a result of gambling addiction that's why they are topping the charts.
What is their to be surprised, as long as you live people do these things you will feel, gambling in your society is higher but trust me there are other countries that gamble the most. The way it works is, some countries have the highest number of gamblers, while some countries have the highest number of irresponsible gamblers that make gambling look bad in the society.