It's important to note that the top 1% (pick whatever bracket you want) is not static. There is a lot of turnover.
According to research from Cornell University, over 50 percent of Americans find themselves among the top 10 percent of income-earners for at least one year during their working lives. Over 11 percent of Americans will be counted among the top 1 percent of income-earners (i.e., people making at minimum $332,000 per annum) for at least one year.
According to research from Cornell University, over 50 percent of Americans find themselves among the top 10 percent of income-earners for at least one year during their working lives. Over 11 percent of Americans will be counted among the top 1 percent of income-earners (i.e., people making at minimum $332,000 per annum) for at least one year.
[1] https://www.cato.org/blog/high-turnover-among-americas-rich