Young people in the USA become income losers

A simple graph below shows how it becomes more and more difficult for a young population to get 60% of the current mean income between 162 and 2013. In 1962, only 9 years of work experience was needed to get 60% of the largest mean income among all ages. In 2013, it takes 14 years or 50% more time. For 70%, the difference grows, but people with 15+ tears of work experience (16+15 years of age) are rather not young. The data are taken from the Census Bureau. The relative decrease in income makes the younger population stay longer in their childhood state.