The source specifies that:
"The Corruption Perceptions Index ranks countries and territories based on how corrupt their public sector is perceived to be. A country or territory’s score indicates the perceived level of public sector corruption on a scale of 0 (highly corrupt) to 100 (very clean)."
Nigeria scored 25 points in the corruption perception index in 2023. The index ranges from zero (high corruption perception) to 100 (absence of corruption). Considering the period observed, Nigeria obtained the lowest score in 2011 and the highest in 2016.
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Trading Economics. (January 31, 2025). Corruption Perception Index in Nigeria from 2011 to 2023 [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 19, 2026, from /statistics/1272336/corruption-perception-index-in-nigeria/
Trading Economics. "Corruption Perception Index in Nigeria from 2011 to 2023." Chart. January 31, 2025. ÌÇÐÄÆÆ½â°æ. Accessed July 19, 2026. /statistics/1272336/corruption-perception-index-in-nigeria/
Trading Economics. (2025). Corruption Perception Index in Nigeria from 2011 to 2023. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 19, 2026. /statistics/1272336/corruption-perception-index-in-nigeria/
Trading Economics. "Corruption Perception Index in Nigeria from 2011 to 2023." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 31 Jan 2025, /statistics/1272336/corruption-perception-index-in-nigeria/
Trading Economics, Corruption Perception Index in Nigeria from 2011 to 2023 ÌÇÐÄÆÆ½â°æ, /statistics/1272336/corruption-perception-index-in-nigeria/ (last visited July 19, 2026)
Corruption Perception Index in Nigeria from 2011 to 2023 [Graph], Trading Economics, January 31, 2025. [Online]. Available: /statistics/1272336/corruption-perception-index-in-nigeria/