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Projected population size (in billions) under different fertility policy scenarios, 2010–50
| Universal two-child policy | One-child policy | |
|---|---|---|
| 2010 | 1·340 | 1·340 |
| 2020 | 1·423 | 1·396 |
| 2030 | 1·445 | 1·386 |
| 2040 | 1·441 | 1·348 |
| 2050 | 1·420 | 1·269 |
| Year of peak population size | 2029 | 2023 |
| Population size in peak year | 1·445 | 1·399 |
