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Maybe this is for another different conversation but I wonder but which one drives people to gambling more. Lack of money or abundance of money? How could you break records in money spent on gambling with people who have no money?
Australia is there because they gamble and have huge wages, even if a country would have the same percentage of population gambling when they earn 50 times less how could they compete for that place? Also, let's be a bit real here, all the countries there are G20 countries, counting out China that makes up with popualtion they are also in the top 20 higest wage in the world.
About the reason Nigeria is not among, stompix is correct. But people in South Nigeria are gambling if population is used. Many parts of the Norths are Muslims which will make gambling activities to reduce in that part of the country, unlike the South.
But would that be a right comparison between Nigeria with 200 million population and Ireland with 5?
We all know what matters in gamblign is the $, any casino would drop 100 low earners for a guy like Drake