V-Dem expert-coded index of political corruption across government on a 0-1 scale (higher is more corrupt). Source: Our World in Data — Governance (CPI, V-Dem). Retrieved 19 Jun 2026.
| Period | Political Corruption Index |
|---|---|
| 2025 | 0.329 |
| 2024 | 0.281 |
| 2023 | 0.314 |
| 2022 | 0.269 |
| 2021 | 0.319 |
| 2020 | 0.298 |
| 2019 | 0.313 |
| 2018 | 0.304 |
| 2017 | 0.322 |
| 2016 | 0.354 |
| 2015 | 0.429 |
| 2014 | 0.462 |
54 countries carry a recent political corruption score (V-Dem) figure. Each opens its own page with the history, the source and the API request.
165 of 207 indicators carry a figure for Tanzania, grouped by topic.