乳児死亡率は、ある年の出生1000人当たりの、生後1年に到達する前に死んだ乳児の数です。
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| オーストラリア | 17.9 | 7.6 | 5.1 | 4.8 | 4.0 | 3.8 | 3.6 | 3.5 | 3.4 | 3.3 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.1 |
| 中国 | 84.3 | 43.3 | 30.0 | 19.4 | 12.5 | 11.5 | 10.5 | 9.7 | 8.9 | 8.2 | 7.6 | 7.0 | 6.4 | 6.0 | 5.5 | 5.1 | 4.8 | 4.5 |
| インドネシア | 111.0 | 64.3 | 41.3 | 33.2 | 27.1 | 26.1 | 25.1 | 24.1 | 23.2 | 22.3 | 21.5 | 20.7 | 19.9 | 19.3 | 18.6 | 18.0 | 17.5 | 17.0 |
| 日本 | 13.4 | 4.6 | 3.3 | 2.7 | 2.4 | 2.3 | 2.2 | 2.2 | 2.1 | 2.0 | 2.0 | 1.9 | 1.9 | 1.8 | 1.8 | 1.8 | 1.8 | 1.8 |
| 大韓民国 | 45.6 | 12.1 | 5.8 | 4.4 | 3.3 | 3.2 | 3.1 | 3.0 | 2.9 | 2.9 | 2.8 | 2.7 | 2.7 | 2.6 | 2.5 | 2.4 | 2.4 | 2.3 |
| マレーシア | 41.4 | 12.7 | 7.7 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 |
| ニュージーランド | 16.9 | 9.1 | 6.0 | 5.5 | 5.2 | 5.1 | 5.0 | 4.9 | 4.8 | 4.7 | 4.6 | 4.5 | 4.4 | 4.3 | 4.2 | 4.2 | 4.1 | 4.0 |
| パプアニューギニア | 106.2 | 65.1 | 56.0 | 51.4 | 45.9 | 44.8 | 43.7 | 42.6 | 41.5 | 40.4 | 39.3 | 38.2 | 37.1 | 36.1 | 35.1 | 34.1 | 33.0 | 32.0 |
| フィリピン | 52.5 | 38.6 | 27.3 | 25.0 | 23.1 | 22.8 | 22.6 | 22.4 | 22.3 | 22.2 | 22.3 | 22.4 | 22.6 | 22.7 | 22.8 | 22.7 | 22.4 | 22.1 |
| シンガポール | 21.8 | 6.1 | 3.0 | 2.3 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.1 | 2.1 | 2.0 | 1.9 | 1.9 | 1.8 | 1.7 |
| タイ | 78.5 | 31.1 | 18.5 | 14.8 | 12.2 | 11.7 | 11.3 | 11.0 | 10.6 | 10.3 | 10.0 | 9.6 | 9.4 | 9.1 | 8.8 | 8.5 | 8.3 | 8.0 |
| ベトナム | 63.7 | 37.2 | 21.7 | 18.1 | 16.5 | 16.3 | 16.2 | 16.0 | 15.8 | 15.6 | 15.4 | 15.2 | 15.0 | 14.9 | 14.7 | 14.5 | 14.3 | 14.0 |
| ロシア連邦 | 22.8 | 17.5 | 15.6 | 11.0 | 8.3 | 8.1 | 7.9 | 7.6 | 7.2 | 6.6 | 6.1 | 5.6 | 5.1 | 4.7 | 4.4 | 4.1 | 3.9 | 3.7 |
| チリ | 68.0 | 16.0 | 9.2 | 7.7 | 7.5 | 7.4 | 7.2 | 7.1 | 7.0 | 6.8 | 6.7 | 6.5 | 6.3 | 6.0 | 5.9 | 5.8 | 5.9 | 6.2 |
| メキシコ | 81.4 | 37.8 | 23.7 | 19.2 | 16.2 | 15.7 | 15.2 | 14.8 | 14.3 | 13.9 | 13.5 | 13.0 | 12.6 | 12.2 | 11.8 | 11.5 | 11.1 | 10.8 |
| ペルー | 125.0 | 59.7 | 29.9 | 21.4 | 16.8 | 16.2 | 15.7 | 15.3 | 15.0 | 14.7 | 14.5 | 14.4 | 14.3 | 14.2 | 14.1 | 14.0 | 13.8 | 13.5 |
| カナダ | 18.5 | 6.8 | 5.3 | 5.2 | 5.0 | 4.9 | 4.8 | 4.8 | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.4 |
| アメリカ合衆国 | 19.9 | 9.4 | 7.1 | 6.8 | 6.2 | 6.1 | 6.0 | 5.9 | 5.8 | 5.8 | 5.7 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
| ブルネイ·ダルサラーム国 | 34.2 | 10.3 | 8.3 | 7.8 | 8.1 | 8.2 | 8.3 | 8.4 | 8.5 | 8.5 | 8.6 | 8.6 | 8.6 | 8.5 | 8.5 | 8.4 | 8.3 | 8.2 |