Government Effectiveness: Lower bound of the 90% confidence in Tanzania
Tanzania: Government Effectiveness: Lower bound of the 90% confidence was 40.9% in 2025. ▲ Rising
Government Effectiveness - Lower bound of the 90% confidence interval in Tanzania, 1996–2025
Source: World Bank.
Analysis
In 2025, government effectiveness - lower bound of the 90% confidence interval in Tanzania stood at 40.9%. That is the highest value across all 27 years on record.
Compared with earlier readings it is up 1.0% on the previous year and up 3.1% over ten years.
Over the whole period, government effectiveness - lower bound of the 90% confidence interval in Tanzania peaked at 40.9% in 2025 and was at its lowest, 16.3%, in 1996.
That places Tanzania 124th out of 206 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently rising across the 27 years of available data.
Government Effectiveness: Lower bound of the 90% confidence in Tanzania, year by year
| Year | Value | Change |
|---|---|---|
| 1996 | 16.3% | — |
| 1998 | 23.9% | +46.9% |
| 2000 | 23.9% | -0.0% |
| 2002 | 27.4% | +14.5% |
| 2003 | 28.2% | +3.0% |
| 2004 | 30.9% | +9.5% |
| 2005 | 34.7% | +12.2% |
| 2006 | 36.9% | +6.5% |
| 2007 | 37.2% | +0.7% |
| 2008 | 36.3% | -2.4% |
| 2009 | 37.3% | +2.7% |
| 2010 | 37.6% | +1.0% |
| 2011 | 37.3% | -0.9% |
| 2012 | 35.3% | -5.3% |
| 2013 | 36.3% | +2.8% |
| 2014 | 37.6% | +3.5% |
| 2015 | 39.7% | +5.6% |
| 2016 | 40.4% | +1.8% |
| 2017 | 40.2% | -0.6% |
| 2018 | 37.8% | -6.0% |
| 2019 | 36.6% | -3.1% |
| 2020 | 37.0% | +1.1% |
| 2021 | 37.1% | +0.4% |
| 2022 | 38.5% | +3.6% |
| 2023 | 39.0% | +1.5% |
| 2024 | 40.5% | +3.8% |
| 2025 | 40.9% | +1.0% |
Tanzania compared with similar countries
- Tanzania's 40.9% is above the median for lower middle income countries, which is 32.3%, 1.3× the median. (47 countries reporting)
- Tanzania's 40.9% is above the median for Sub-Saharan Africa, which is 29.6%, 1.4× the median. (48 countries reporting)
Biggest year-on-year movements
Years where Government Effectiveness: Lower bound of the 90% confidence in Tanzania changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1998 | +46.9% | 16.3% | 23.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 20.1% | 16.3% | 23.9% | 2 |
| 2000s | 32.5% | 23.9% | 37.3% | 9 |
| 2010s | 37.9% | 35.3% | 40.4% | 10 |
| 2020s | 38.9% | 37.0% | 40.9% | 6 |
Countries ranked near Tanzania
More reference data data for Tanzania
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.6405 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 11.44 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 14.14 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.7582 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 14.14 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 2.15 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 1.26 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 59.37 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 72.45 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 4.13 (2050)
Frequently asked questions
- What is government effectiveness - lower bound of the 90% confidence interval in Tanzania?
- Government effectiveness - lower bound of the 90% confidence interval in Tanzania was 40.9% in 2025, according to the World Bank.
- What is the highest government effectiveness - lower bound of the 90% confidence interval recorded in Tanzania?
- The highest recorded value was 40.9% in 2025.
- What is the lowest government effectiveness - lower bound of the 90% confidence interval recorded in Tanzania?
- The lowest recorded value was 16.3% in 1996.
- How does Tanzania rank for government effectiveness - lower bound of the 90% confidence interval?
- Tanzania ranks 124th out of 206 countries with data for 2025.
- Is government effectiveness - lower bound of the 90% confidence interval rising or falling in Tanzania?
- Over the last ten years it is up 3.1%. The long-run trend across the full record is rising.
- Where does this Tanzania data come from?
- The figures come from the World Bank, published as part of Government Effectiveness - Lower bound of the 90% confidence interval for the governance score. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 27 observations, free to reuse under CC BY 4.0 (World Bank Open Data).