This interactive map shows just how much the percentage of income made by the top 1 percent of earners around the world has changed over the last 100 years.
In the U.S., starting at around the '80s, the amount of income concentrated among the top 1% starts to really build steam. By the time we've hit the end of the dataset in 2012, the top 1% of Americans make roughly 20% of the country's income.
The map isn't limited to just the 1%, though. You can also adjust the settings to look at the top 10%, or to compare the top 1% with the bottom 90%, or to look at just specific countries.
The map is the work of the CREATE Lab at Carnegie Mellon's Robotics Institute, using data from the World Top Incomes Database created by Thomas Piketty of the Paris School of Economics.
You can check out the whole thing here.