Human Development Index discounted for inequality across its dimensions, on a 0-1 scale (higher is better). Source: UNDP Human Development Report. Retrieved 26 Jun 2026.
| Period | Inequality-adjusted HDI |
|---|---|
| 2023 | 0.281 |
| 2022 | 0.278 |
| 2021 | 0.274 |
| 2020 | 0.27 |
| 2019 | 0.269 |
| 2018 | 0.267 |
| 2017 | 0.262 |
| 2016 | 0.258 |
| 2015 | 0.251 |
| 2014 | 0.252 |
| 2013 | 0.25 |
| 2012 | 0.236 |
51 countries carry a recent inequality-adjusted HDI 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.