"high levels of organic atheism [not government coerced] are strongly correlated with high levels of societal health, such as low homicide rates, low poverty rates, low infant mortality rates, and low illiteracy rates, as well as high levels of educational attainment, per capita income, and gender equality."

Interestingly, the US is 4-5 times more religious than Israel.

Atheism: Contemporary Rates and Patterns