The data featured in the chart come from the latest available information from the Social Security Administration, which tracks net income numbers (after taxes) for all workers. However, it's important to note that the SSA numbers include literally any and all wage earners, which means everyone from part-time workers, to college students, and even teenagers with after-school jobs are included, so that skews the numbers a bit low. Also, the figures represent individual earners, so these don't necessarily reflect the household earnings for a lot of couples and families.
Still, it's a bit unnerving to see the reality of income inequality in America in such a stark presentation. And when you compare it to the countrywide stats on what you need to earn every month just to rent a place to live, it's even more alarming.
But, hey, if you're still in school, you still have a chance to switch up your major to one that's most likely get you a good-paying gig once you graduate.