Public opinion polls taken across 114 nations showed that about 95 percent of people in the poorest countries said religion was an important part of their daily lives; what was the percentage for people living in countries with the highest per capita income? 75%

The percentage is around 47%

Study shows that less religious people tend to rely more on personal effort and analytic in order to solve the problems in their life, while more religious people tend to let the problems go because they tend to seek non-materialistic source of happiness, which will be directly correlated to the level of income.