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

Sierra Leone: Control of Corruption: Lower bound of the 90% confidence was 27.1% in 2025. ▲ Rising

Latest (2025)
27.1%
Change on year
down 6.4%
World rank
151st
of 208 countries
All-time high
33.1%
in 2020
All-time low
20.2%
in 2005
Years of data
27
1996–2025

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

01020301996201020251996: 25.21998: 24.92000: 24.72002: 222003: 22.32004: 242005: 20.22006: 20.92007: 222008: 23.42009: 26.92010: 29.42011: 29.52012: 27.42013: 26.22014: 25.42015: 26.62016: 262017: 28.32018: 32.12019: 32.82020: 33.12021: 332022: 31.82023: 31.62024: 28.92025: 27.1

Source: World Bank.

Analysis

Sierra Leone recorded 27.1% for control of corruption - lower bound of the 90% confidence interval in 2025.

Compared with earlier readings it is down 6.4% on the previous year and up 1.8% over ten years.

Over the whole period, control of corruption - lower bound of the 90% confidence interval in Sierra Leone peaked at 33.1% in 2020 and was at its lowest, 20.2%, in 2005.

Sierra Leone ranks 151st of 208 countries on this measure, in the middle of the range.

The long-run direction has been consistently rising across the 27 years of available data.

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

Annual values for Control of Corruption - Lower bound of the 90% confidence interval for the governance score in Sierra Leone, 1996 to 2025.
Year Value Change
1996 25.2% —
1998 24.9% -1.4%
2000 24.7% -0.5%
2002 22.0% -11.0%
2003 22.3% +1.1%
2004 24.0% +7.8%
2005 20.2% -15.7%
2006 20.9% +3.4%
2007 22.0% +5.3%
2008 23.4% +6.1%
2009 26.9% +15.1%
2010 29.4% +9.3%
2011 29.5% +0.3%
2012 27.4% -7.1%
2013 26.2% -4.4%
2014 25.4% -3.2%
2015 26.6% +4.9%
2016 26.0% -2.1%
2017 28.3% +8.8%
2018 32.1% +13.2%
2019 32.8% +2.2%
2020 33.1% +1.1%
2021 33.0% -0.3%
2022 31.8% -3.7%
2023 31.6% -0.6%
2024 28.9% -8.5%
2025 27.1% -6.4%

Sierra Leone compared with similar countries

  • Sierra Leone's 27.1% is above the median for low income countries, which is 15.9%, 1.7× the median. (25 countries reporting)
  • Sierra Leone's 27.1% is above the median for Sub-Saharan Africa, which is 26.4%, 1.0× the median. (48 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1990s 25.0% 24.9% 25.2% 2
2000s 22.9% 20.2% 26.9% 9
2010s 28.4% 25.4% 32.8% 10
2020s 30.9% 27.1% 33.1% 6

Countries ranked near Sierra Leone

  1. 148 Niger 27.9% compare
  2. 149 Ecuador 27.5% compare
  3. 150 Peru 27.4% compare
  4. 152 Nepal 26.9% compare
  5. 153 Gabon 26.8% compare
  6. 154 Cuba 26.5% 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 - lower bound of the 90% confidence interval in Sierra Leone?
Control of corruption - lower bound of the 90% confidence interval in Sierra Leone was 27.1% in 2025, according to the World Bank.
What is the highest control of corruption - lower bound of the 90% confidence interval recorded in Sierra Leone?
The highest recorded value was 33.1% in 2020.
What is the lowest control of corruption - lower bound of the 90% confidence interval recorded in Sierra Leone?
The lowest recorded value was 20.2% in 2005.
How does Sierra Leone rank for control of corruption - lower bound of the 90% confidence interval?
Sierra Leone ranks 151st out of 208 countries with data for 2025.
Is control of corruption - lower bound of the 90% confidence interval rising or falling in Sierra Leone?
Over the last ten years it is up 1.8%. The long-run trend across the full record is rising.
Where does this Sierra Leone data come from?
The figures come from the World Bank, published as part of Control of Corruption - Lower 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 - Lower bound of the 90% confidence interval in Sierra Leone. Statizoid. Retrieved 13 November 2026, from https://reference.statizoid.com/stat/control-of-corruption-lower-bound-of-the-90-percent-confidence-interval-for-the/sierra-leone/

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About this data

Indicator
Control of Corruption - Lower 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