UNDP composite index of life expectancy, education and income on a 0-1 scale (higher is better). Source: UNDP Human Development Report. Retrieved 26 Jun 2026.
| Period | Human Development Index |
|---|---|
| 2023 | 0.467 |
| 2022 | 0.463 |
| 2021 | 0.458 |
| 2020 | 0.454 |
| 2019 | 0.455 |
| 2018 | 0.451 |
| 2017 | 0.445 |
| 2016 | 0.441 |
| 2015 | 0.432 |
| 2014 | 0.438 |
| 2013 | 0.436 |
| 2012 | 0.418 |
54 countries carry a recent Human Development Index figure. Each opens its own page with the history, the source and the API request.
149 of 207 indicators carry a figure for Sierra Leone, grouped by topic.