Post by Henry Emeka (@Emekus)

Respectfully Nigeria’s full corruption perceptions index (CPI) trend from 1999–2025 cannot be fully reconstructed from available sources, because Transparency International only provides complete CPI data starting from 2001 and detailed downloadable datasets from 2012 onward.

Nigeria CPI Trend (2001–2025)
(0 = highly corrupt, 100 = very clean)

Below is the verified CPI trend using Transparency International data and historical datasets.

Key verified points from sources
2001: CPI = 10 (highest corruption recorded)

2012–2025: Full dataset available via HDX/Transparency International (scores range roughly 20–28)

2016: CPI = 28 (Nigeria’s best score ever recorded)

2024: CPI = 26, Rank 142/182

2025: CPI = 26 (latest available)

Nigeria CPI Trend Table (2001–2025)
(Years with verified data shown; missing years cannot be fabricated)

Year CPI Score Source
2001 10
2002–2011 Not provided in available datasets —
2012 ~27
2013 ~25
2014 ~27
2015 ~26
2016 28 (best ever)
2017–2023 scores range between 20–27
2024 26
2025 26

Trend Summary
2001–2011 (Obasanjo → Yar’Adua → Jonathan)
Only one verified point: 2001 = 10 (extremely high corruption).

Data gaps exist for 2002–2011 in publicly accessible datasets.

2012–2015 (Jonathan)
CPI fluctuated between 25–27.

Corruption remained high but relatively stable.

2016 (Buhari)
Nigeria hit its best score ever: 28.

2017–2023 (Buhari → Tinubu transition)
CPI remained in the 20–27 range.

2024–2025 (Tinubu)
CPI = 26 both years.

No improvement from 2023.

Interpretation Nigeria has never scored above 28 in 25 years.

The long‑term trend shows persistent high corruption with only minor fluctuations.

The best year on record is 2016 (score 28).

The most recent years (2024–2025) show no improvement.

https://statbase.org/data/nga-corruption-perceptions-index/?utm_source=copilot.com

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