Control of Corruption: Upper bound of the 90% confidence in Sierra Leone

Sierra Leone: Control of Corruption: Upper bound of the 90% confidence was 37.4% in 2025. ▬ Flat

Latest (2025)
37.4%
Change on year
down 4.7%
World rank
160th
of 208 countries
All-time high
44.8%
in 1996
All-time low
34.0%
in 2005
Years of data
27
1996–2025

Control of Corruption - Upper bound of the 90% confidence interval in Sierra Leone, 1996–2025

0102030401996201020251996: 44.81998: 44.42000: 44.32002: 41.62003: 41.12004: 38.52005: 342006: 34.42007: 35.52008: 36.82009: 38.72010: 41.22011: 41.32012: 37.82013: 36.52014: 35.72015: 36.92016: 36.42017: 38.72018: 42.42019: 43.12020: 43.52021: 43.42022: 42.12023: 41.92024: 39.22025: 37.4

Source: World Bank.

Analysis

In 2025, control of corruption - upper bound of the 90% confidence interval in Sierra Leone stood at 37.4%.

The figure is down 4.7% on the previous year and up 1.1% over ten years.

Over the whole period, control of corruption - upper bound of the 90% confidence interval in Sierra Leone peaked at 44.8% in 1996 and was at its lowest, 34.0%, in 2005.

That places Sierra Leone 160th out of 208 countries with data for 2025, putting it in the bottom quarter.

Control of Corruption: Upper bound of the 90% confidence in Sierra Leone, year by year

Annual values for Control of Corruption - Upper bound of the 90% confidence interval for the governance score in Sierra Leone, 1996 to 2025.
Year Value Change
1996 44.8% —
1998 44.4% -0.8%
2000 44.3% -0.3%
2002 41.6% -6.2%
2003 41.1% -1.2%
2004 38.5% -6.2%
2005 34.0% -11.7%
2006 34.4% +1.2%
2007 35.5% +3.2%
2008 36.8% +3.7%
2009 38.7% +5.2%
2010 41.2% +6.5%
2011 41.3% +0.2%
2012 37.8% -8.4%
2013 36.5% -3.5%
2014 35.7% -2.3%
2015 36.9% +3.5%
2016 36.4% -1.5%
2017 38.7% +6.3%
2018 42.4% +9.7%
2019 43.1% +1.7%
2020 43.5% +0.8%
2021 43.4% -0.2%
2022 42.1% -2.8%
2023 41.9% -0.6%
2024 39.2% -6.4%
2025 37.4% -4.7%

Sierra Leone compared with similar countries

  • Sierra Leone's 37.4% is above the median for low income countries, which is 27.6%, 1.4× the median. (25 countries reporting)
  • Sierra Leone's 37.4% is below the median for Sub-Saharan Africa, which is 38.2%, 98% of the median. (48 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1990s 44.6% 44.4% 44.8% 2
2000s 38.3% 34.0% 44.3% 9
2010s 39.0% 35.7% 43.1% 10
2020s 41.2% 37.4% 43.5% 6

Countries ranked near Sierra Leone

  1. 157 Peru 38.2% compare
  2. 158 Nepal 38.0% compare
  3. 159 Gabon 38.0% compare
  4. 161 Kenya 35.7% compare
  5. 162 Djibouti 35.6% compare
  6. 163 Guatemala 35.1% compare

See the full ranking of 208 places →

More reference data data for Sierra Leone

All data for Sierra Leone →

Frequently asked questions

What is control of corruption - upper bound of the 90% confidence interval in Sierra Leone?
Control of corruption - upper bound of the 90% confidence interval in Sierra Leone was 37.4% in 2025, according to the World Bank.
What is the highest control of corruption - upper bound of the 90% confidence interval recorded in Sierra Leone?
The highest recorded value was 44.8% in 1996.
What is the lowest control of corruption - upper bound of the 90% confidence interval recorded in Sierra Leone?
The lowest recorded value was 34.0% in 2005.
How does Sierra Leone rank for control of corruption - upper bound of the 90% confidence interval?
Sierra Leone ranks 160th out of 208 countries with data for 2025.
Is control of corruption - upper bound of the 90% confidence interval rising or falling in Sierra Leone?
Over the last ten years it is up 1.1%. The long-run trend across the full record is flat.
Where does this Sierra Leone data come from?
The figures come from the World Bank, published as part of Control of Corruption - Upper bound of the 90% confidence interval for the governance score. Statizoid updates them automatically from the source API.

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Control of Corruption - Upper bound of the 90% confidence interval in Sierra Leone. Statizoid. Retrieved 14 November 2026, from https://reference.statizoid.com/stat/control-of-corruption-upper-bound-of-the-90-percent-confidence-interval-for-the/sierra-leone/

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About this data

Indicator
Control of Corruption - Upper bound of the 90% confidence interval for the governance score
Source
World Bank
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
208 places, 5,432 data points, 1996–2025
Last refreshed