@cmconseils I might have badly worded that one. Up to 70k/y, there is a statistically significant correlation between income and happyness. Most people with income of 50k are happier than thoses with income of 30k. After that point, the correlation doesn't hold that much and it's not unusual for people with income of 100k to be as happy or happier than people with income of 200k. The trend tend to still go up but the data have much more spread