The world’s population is aging, but not evenly. While some regions are growing older at an alarming pace, others remain remarkably young. In this graphic, we map the median age in every country, showing where populations are oldest and youngest around the globe. Median age measures the midpoint of a population’s age distribution. In other words, it’s where half the people are younger and half are older. This is different from a mean average, which sums all ages and divides by the total number of people, making it more affected by very young or old individuals.
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