Poorer countries tended to respond happier, with one rich exception.
“When looking at this question by national income, there is a slightly negative correlation between saying the day is a good one and per capita GDP. The U.S. is a major outlier on this measure. It has the highest GDP per capita among the countries surveyed and Americans were more likely to rate a day as particularly good than people in other rich nations.”
So, how’s your day going?