総人口の割合として、0歳から14歳までの人口。人口は、人口の事実上の定義に基づいています。
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| パプアニューギニア | 45.8 | 42.1 | 40.0 | 38.8 | 37.5 | 37.2 | 37.0 | 36.7 | 36.5 | 36.2 | 35.9 | 35.6 | 35.3 | 35.0 | 34.7 | 34.4 | 34.1 | 33.8 | 33.5 |
| フィリピン | 48.4 | 41.8 | 39.2 | 37.2 | 35.6 | 35.2 | 34.8 | 34.4 | 34.1 | 33.5 | 32.9 | 32.3 | 31.8 | 31.3 | 30.7 | 30.0 | 29.3 | 28.6 | 27.9 |
| インドネシア | 42.6 | 35.9 | 30.8 | 29.1 | 27.9 | 27.7 | 27.5 | 27.3 | 27.2 | 27.0 | 26.8 | 26.6 | 26.3 | 26.1 | 25.8 | 25.6 | 25.3 | 24.9 | 24.6 |
| メキシコ | 47.7 | 39.0 | 34.3 | 32.1 | 29.8 | 29.4 | 29.0 | 28.7 | 28.3 | 28.0 | 27.6 | 27.2 | 26.7 | 26.3 | 26.0 | 25.7 | 25.3 | 24.9 | 24.5 |
| ペルー | 44.0 | 39.4 | 34.7 | 31.7 | 29.3 | 28.9 | 28.5 | 28.2 | 27.8 | 27.5 | 27.2 | 26.8 | 26.4 | 25.9 | 25.5 | 25.1 | 24.8 | 24.4 | 24.0 |
| ベトナム | 42.9 | 38.5 | 31.5 | 27.7 | 24.6 | 24.2 | 24.0 | 23.9 | 24.0 | 24.0 | 24.1 | 24.4 | 24.6 | 24.5 | 24.4 | 24.2 | 23.9 | 23.6 | 23.2 |
| マレーシア | 44.5 | 37.2 | 34.2 | 31.4 | 27.9 | 27.4 | 27.0 | 26.6 | 26.2 | 25.8 | 25.5 | 25.2 | 24.9 | 24.5 | 24.0 | 23.4 | 22.8 | 22.3 | 21.8 |
| ブルネイ·ダルサラーム国 | 43.6 | 34.4 | 30.3 | 26.7 | 25.3 | 25.2 | 24.9 | 24.5 | 24.0 | 23.6 | 23.1 | 22.7 | 22.3 | 21.9 | 21.6 | 21.3 | 21.2 | 21.0 | 20.8 |
| ニュージーランド | 31.9 | 23.3 | 22.8 | 21.5 | 20.9 | 20.8 | 20.6 | 20.4 | 20.2 | 19.9 | 19.6 | 19.5 | 19.3 | 19.2 | 19.0 | 18.9 | 18.6 | 18.4 | 18.1 |
| オーストラリア | 28.8 | 22.0 | 20.8 | 19.8 | 19.1 | 19.0 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.8 | 18.8 | 18.7 | 18.6 | 18.4 | 18.2 | 18.0 | 17.8 |
| アメリカ合衆国 | 28.6 | 21.6 | 21.2 | 20.3 | 19.7 | 19.6 | 19.5 | 19.4 | 19.3 | 19.2 | 19.1 | 18.9 | 18.8 | 18.6 | 18.4 | 18.1 | 17.9 | 17.6 | 17.3 |
| ロシア連邦 | 26.1 | 22.9 | 18.0 | 15.2 | 15.2 | 15.4 | 15.7 | 16.1 | 16.5 | 16.9 | 17.2 | 17.5 | 17.6 | 17.6 | 17.7 | 17.7 | 17.7 | 17.5 | 17.3 |
| チリ | 38.0 | 29.8 | 26.8 | 24.1 | 21.5 | 21.1 | 20.8 | 20.5 | 20.2 | 19.9 | 19.7 | 19.3 | 19.0 | 18.7 | 18.4 | 18.1 | 17.8 | 17.4 | 17.0 |
| 中国 | 40.8 | 28.8 | 24.5 | 20.3 | 18.5 | 18.3 | 18.3 | 18.3 | 18.3 | 18.3 | 18.3 | 18.4 | 18.3 | 18.2 | 18.0 | 17.6 | 17.1 | 16.6 | 16.0 |
| カナダ | 30.2 | 20.7 | 19.2 | 17.7 | 16.6 | 16.4 | 16.3 | 16.3 | 16.2 | 16.2 | 16.2 | 16.2 | 16.1 | 16.0 | 15.9 | 15.7 | 15.5 | 15.3 | 15.1 |
| タイ | 44.8 | 30.0 | 24.4 | 22.2 | 20.1 | 19.7 | 19.2 | 18.8 | 18.5 | 18.1 | 17.7 | 17.3 | 16.9 | 16.6 | 16.2 | 15.8 | 15.4 | 15.1 | 14.7 |
| シンガポール | 38.7 | 21.4 | 18.8 | 17.2 | 14.1 | 13.7 | 13.4 | 13.1 | 12.9 | 12.7 | 12.5 | 12.4 | 12.3 | 12.2 | 12.2 | 12.2 | 12.0 | 11.8 | 11.7 |
| 日本 | 23.3 | 18.0 | 14.4 | 13.8 | 13.4 | 13.3 | 13.2 | 13.1 | 13.0 | 12.8 | 12.7 | 12.6 | 12.5 | 12.4 | 12.2 | 12.0 | 11.9 | 11.6 | 11.4 |
| 大韓民国 | 42.1 | 25.8 | 21.0 | 19.2 | 16.4 | 15.8 | 15.2 | 14.7 | 14.2 | 13.8 | 13.4 | 13.0 | 12.7 | 12.4 | 12.1 | 11.8 | 11.4 | 11.0 | 10.6 |
| 香港 | 38.4 | 21.2 | 17.0 | 14.5 | 12.2 | 11.8 | 11.7 | 11.6 | 11.6 | 11.5 | 11.5 | 11.6 | 11.6 | 11.5 | 11.3 | 11.1 | 10.9 | 10.7 | 10.5 |