V-Dem liberal democracy index — electoral democracy plus liberal checks and protections — on a 0-1 scale. Source: Our World in Data — Governance (CPI, V-Dem). Retrieved 19 Jun 2026.
| Period | Liberal Democracy Index |
|---|---|
| 2025 | 0.311 |
| 2024 | 0.314 |
| 2023 | 0.316 |
| 2022 | 0.321 |
| 2021 | 0.331 |
| 2020 | 0.349 |
| 2019 | 0.36 |
| 2018 | 0.391 |
| 2017 | 0.393 |
| 2016 | 0.395 |
| 2015 | 0.401 |
| 2014 | 0.389 |
54 countries carry a recent liberal democracy score (V-Dem) figure. Each opens its own page with the history, the source and the API request.
164 of 207 indicators carry a figure for Nigeria, grouped by topic.