Interactive dashboard showing Corruption Perceptions Index scores for 180 countries from 2012 to 2021, with rankings, trends, and regional analysis.

Key Indicators
Global Average Score
43
Out of 100 · 0 = highly corrupt
Least Corrupt · 2021
Denmark
Score: 88 / 100
Most Improved (2012–2021)
Angola
+7 pts · 22 → 29
Most Corrupt · 2021
South Sudan
Score: 11 / 100
Countries Scoring < 30
26
Critically corrupt nations
Countries Scoring ≥ 70
24
Relatively clean nations
Decade Decline — USA
–6 pts
73 in 2012 → 67 in 2021
Decade Rise — Estonia
+10 pts
64 in 2012 → 74 in 2021
Score Distribution
All Countries by CPI Score — 2021
Color-coded by tier · Scores 0–100 · Lower = more corrupt
Clean (70–100)
Moderate (50–69)
Problematic (30–49)
Highly Corrupt (0–29)
CPI scores range from 11 (South Sudan) to 88 (Denmark, New Zealand, Finland).
Trend Over Time
Score Trajectories — Selected Countries (2012–2021)
10-year trend · Annual CPI scores
Denmark remains the top scorer near 90; Somalia stays the lowest near 9–13.
Country Spotlight
Country Deep Dive
Click a country to see its decade trend
Denmark
2021 Score
Decade trend for selected country.
Top & Bottom Rankings
Rank Country 2021 2019 2017 2015 2012 Score Bar Trend
Source: Transparency International — Corruption Perceptions Index (CPI) · Kaggle Dataset · Scores 0–100 (100 = very clean)