Under-five mortality rate is the probability per 1,000 that a newborn baby will die before reaching age five, if subject to current age-specific mortality rates.
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Australia | 21.5 | 9.2 | 6.2 | 5.7 | 4.8 | 4.5 | 4.3 | 4.1 | 4.0 | 3.9 | 3.8 | 3.8 | 3.8 | 3.8 | 3.8 | 3.7 | 3.7 | 3.7 |
| Japan | 17.5 | 6.3 | 4.5 | 3.7 | 3.3 | 3.3 | 3.1 | 3.0 | 2.9 | 2.8 | 2.7 | 2.6 | 2.5 | 2.5 | 2.4 | 2.4 | 2.4 | 2.4 |
| Korea, Rep. | 61.2 | 15.7 | 7.5 | 5.6 | 4.1 | 4.0 | 3.8 | 3.7 | 3.6 | 3.5 | 3.4 | 3.3 | 3.2 | 3.1 | 3.0 | 2.9 | 2.8 | 2.8 |
| New Zealand | 20.8 | 11.2 | 7.4 | 6.6 | 6.2 | 6.1 | 6.0 | 5.9 | 5.7 | 5.6 | 5.5 | 5.3 | 5.2 | 5.1 | 5.0 | 4.9 | 4.8 | 4.7 |
| Austria | 29.1 | 9.5 | 5.5 | 4.9 | 4.3 | 4.2 | 4.0 | 3.9 | 3.8 | 3.7 | 3.6 | 3.6 | 3.5 | 3.5 | 3.4 | 3.3 | 3.2 | 3.1 |
| Belgium | 23.9 | 10.0 | 5.9 | 5.0 | 4.5 | 4.4 | 4.3 | 4.2 | 4.2 | 4.1 | 4.1 | 4.0 | 4.0 | 3.9 | 3.9 | 3.8 | 3.7 | 3.6 |
| Denmark | 16.6 | 8.9 | 5.6 | 4.8 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.0 | 4.0 | 3.9 | 3.8 | 3.7 | 3.6 | 3.5 | 3.4 |
| Finland | 16.1 | 6.7 | 4.3 | 3.7 | 3.0 | 2.9 | 2.8 | 2.6 | 2.6 | 2.5 | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 |
| France | 18.2 | 9.0 | 5.4 | 4.6 | 4.2 | 4.2 | 4.1 | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 |
| Germany | 25.7 | 8.5 | 5.4 | 4.7 | 4.2 | 4.1 | 4.0 | 4.0 | 4.0 | 3.9 | 3.9 | 3.8 | 3.8 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 |
| Greece | 31.3 | 10.5 | 6.4 | 4.6 | 3.9 | 4.0 | 4.0 | 4.1 | 4.2 | 4.3 | 4.3 | 4.3 | 4.2 | 4.1 | 4.0 | 3.9 | 3.8 | 3.7 |
| Hungary | 38.9 | 17.2 | 10.1 | 7.5 | 6.0 | 5.9 | 5.7 | 5.6 | 5.3 | 5.1 | 4.7 | 4.5 | 4.3 | 4.1 | 4.0 | 4.0 | 3.9 | 3.8 |
| Iceland | 16.0 | 6.3 | 4.0 | 3.1 | 2.7 | 2.7 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.6 | 2.7 | 2.7 | 2.7 | 2.7 | 2.6 | 2.6 |
| Ireland | 22.2 | 9.2 | 7.2 | 5.2 | 4.2 | 4.1 | 4.0 | 3.9 | 3.8 | 3.7 | 3.6 | 3.5 | 3.4 | 3.4 | 3.5 | 3.6 | 3.7 | 3.8 |
| Italy | 33.6 | 9.7 | 5.6 | 4.5 | 4.0 | 3.9 | 3.8 | 3.7 | 3.6 | 3.5 | 3.4 | 3.3 | 3.2 | 3.1 | 3.0 | 2.9 | 2.8 | 2.8 |
| Netherlands | 15.8 | 8.3 | 6.2 | 5.3 | 4.4 | 4.3 | 4.2 | 4.2 | 4.1 | 4.1 | 4.1 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 |
| Luxembourg | 22.4 | 8.8 | 4.7 | 3.5 | 2.8 | 2.7 | 2.7 | 2.6 | 2.6 | 2.6 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.4 | 2.4 | 2.3 |
| Norway | 16.2 | 8.7 | 4.9 | 4.1 | 3.3 | 3.1 | 3.0 | 2.9 | 2.8 | 2.7 | 2.6 | 2.5 | 2.5 | 2.4 | 2.4 | 2.3 | 2.3 | 2.4 |
| Poland | 35.9 | 17.4 | 9.3 | 7.6 | 6.0 | 5.7 | 5.4 | 5.2 | 5.0 | 4.9 | 4.8 | 4.6 | 4.5 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 |
| Spain | 31.6 | 9.2 | 5.4 | 4.7 | 3.8 | 3.7 | 3.6 | 3.5 | 3.4 | 3.3 | 3.3 | 3.2 | 3.2 | 3.2 | 3.2 | 3.1 | 3.1 | 3.1 |
| Portugal | 68.1 | 14.7 | 7.2 | 4.7 | 3.8 | 3.7 | 3.7 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.5 | 3.5 | 3.4 | 3.3 | 3.2 | 3.2 |
| Sweden | 13.4 | 7.0 | 4.1 | 3.6 | 3.1 | 3.0 | 3.0 | 2.9 | 2.9 | 2.9 | 2.8 | 2.8 | 2.7 | 2.6 | 2.6 | 2.5 | 2.5 | 2.5 |
| Switzerland | 18.4 | 8.2 | 5.6 | 5.1 | 4.6 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.2 | 4.1 | 4.1 | 4.0 | 4.0 | 4.0 | 4.0 | 3.9 |
| Turkiye | 185.8 | 73.8 | 37.4 | 25.7 | 17.9 | 16.8 | 15.8 | 14.9 | 14.0 | 13.3 | 12.6 | 12.0 | 11.5 | 11.0 | 10.5 | 10.1 | 9.6 | 12.8 |
| United Kingdom | 21.0 | 9.3 | 6.5 | 6.0 | 5.2 | 5.0 | 4.8 | 4.6 | 4.5 | 4.5 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 |
| Chile | 80.1 | 19.1 | 10.9 | 9.1 | 8.7 | 8.6 | 8.4 | 8.2 | 8.1 | 7.9 | 7.7 | 7.5 | 7.2 | 7.0 | 6.8 | 6.7 | 6.8 | 7.2 |
| Mexico | 106.8 | 45.3 | 28.1 | 22.7 | 19.1 | 18.5 | 17.9 | 17.3 | 16.8 | 16.2 | 15.7 | 15.2 | 14.7 | 14.2 | 13.8 | 13.3 | 12.9 | 12.5 |
| Canada | 21.9 | 8.2 | 6.2 | 6.1 | 5.7 | 5.6 | 5.6 | 5.5 | 5.4 | 5.4 | 5.3 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 |
| United States | 23.2 | 11.2 | 8.4 | 8.0 | 7.3 | 7.2 | 7.0 | 6.9 | 6.8 | 6.8 | 6.7 | 6.6 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 |
| Israel | 30.1 | 11.5 | 6.9 | 5.6 | 4.6 | 4.4 | 4.3 | 4.1 | 4.0 | 3.9 | 3.8 | 3.7 | 3.7 | 3.6 | 3.5 | 3.5 | 3.4 | 3.4 |
| Estonia | 17.7 | 11.0 | 7.1 | 4.6 | 4.2 | 3.9 | 3.6 | 3.4 | 3.2 | 3.0 | 2.8 | 2.7 | 2.5 | 2.4 | 2.3 | 2.2 | 2.1 | |
| Slovak Republic | 29.5 | 14.7 | 9.6 | 8.3 | 6.9 | 6.7 | 6.6 | 6.4 | 6.3 | 6.2 | 6.1 | 6.0 | 6.0 | 5.9 | 5.9 | 6.0 | 6.0 | 6.1 |
| Slovenia | 10.4 | 5.4 | 4.2 | 3.2 | 3.1 | 2.9 | 2.8 | 2.7 | 2.6 | 2.6 | 2.5 | 2.4 | 2.4 | 2.4 | 2.3 | 2.3 | 2.2 | |
| Czechia | 24.3 | 12.1 | 5.5 | 4.4 | 3.4 | 3.3 | 3.2 | 3.1 | 3.1 | 3.2 | 3.2 | 3.2 | 3.1 | 3.0 | 2.9 | 2.8 | 2.7 | 2.6 |