Contents

Each dot on screen is 10,000 people. Population data come from the UN World Population Prospects 2024: estimates up to 2023, and from 2024 a projection calculated from assumptions about births, deaths and migration (medium scenario). Every number on the cards comes from this data, with its source. The charts on marriage, age at first marriage, the Seoul region, tutoring costs and class size are approximate figures from published statistics, not yet checked line by line against the originals.

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