K-12 Tax & Spending Climate: Which countries achieved economic growth? And why does it matter?

Max Roser:

The average person in the world is 4.4-times richer than in 1950. But beyond the global average, how did incomes change in countries around the world? And why should we care about the growth of incomes? These are the two questions I answer in this post.

The two charts in this post show the level of GDP per capita for countries around the world between 1950 and 2016.

Related: Recent taxpayer supported Madison K-12 tax and spending history.