| Indicator | Value |
|---|---|
| Electoral democracy index | 0.504 indexV-Dem [2025] |
| Liberal democracy index | 0.355 indexV-Dem [2025] |
| Government effectiveness | 0.915 indexWorld Bank WGI [2024] |
| Rule of law | 0.345 indexWorld Bank WGI [2024] |
| Control of corruption | 0.498 indexWorld Bank WGI [2024] |
| Voice & accountability | -0.127 indexWorld Bank WGI [2024] |
| Political stability | 0.385 indexWorld Bank WGI [2024] |
| Regulatory quality | 0.68 indexWorld Bank WGI [2024] |
| Cabinet fragmentation index | 0.433 indexWB DPI [2023] |
| Governing majority margin | 0.581 %WB DPI [2023] |
| Parties in executive cabinet | 129WB DPI [2023] |
| Women in parliament | 13.5 %WB Gender [2024] |
| Constitutional history supplement | No authoritative open source found |
| Legal system | mixed system of English common law, Islamic law (sharia), and customary law; the Federal Court can review legislative acts at the request of the supreme head of the federationCIA World Factbook [2025] · 2026 archive |
| Suffrage (voting rights) | 18 years of age; universalCIA World Factbook [2025] · 2026 archive |
previous 1948; latest drafted 21 February 1957, effective 27 August 1957
Source: CIA World Factbook (Historical Archive — final edition) · CC0 · Edition 2026-05
How to read these indices
V-Dem democracy indices range from 0 to 1 — higher values mean stronger democratic institutions. World Bank WGI governance estimates range from about −2.5 to +2.5, where higher is better. These are comparative indices across countries, not absolute scores.
