via GoldenGatorBridge:
Sources:
2016: Global Wealth Databook 2016 (pp. 106ff)
2000: UN University: The World Distribution of Household Wealth
Tools: Visualization using Python, Pandas Matplotlib and Seaborn.
The Gini index measures inequality in a distribution. 100 means that one person owns everything, 0 means that everybody has the same wealth.