WEF Global Social Mobility Report: The American Dream is easier to achieve in Canada - CNN

"The top 1% of income earners in the United States earned 158% more in 2018 than they did in 1979, while the bottom 90% of earners in the US grew their wages just 24% over that time period."

https://www.cnn.com/2020/01/20/business/wef-social-mobility-index/index.html