Voice and Accountability - Governance estimate (approx. -2.5 to +2.5) in Tanzania
Tanzania: Voice and Accountability - Governance estimate (approx. -2.5 to +2.5) was -0.7857 approx. -2.5 to +2.5 in 2025. ◆ Volatile
Voice and Accountability - Governance estimate in Tanzania, 1996–2025
Source: The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG). Measured in approx. -2.5 to +2.5.
Analysis
The most recent figure for voice and accountability - governance estimate in Tanzania is -0.7857 approx. -2.5 to +2.5, measured in 2025.
That represents a change of down 13.0% on the previous year and down 280.4% over ten years.
Over the whole period, voice and accountability - governance estimate in Tanzania peaked at -0.0368 approx. -2.5 to +2.5 in 2007 and was at its lowest, -0.8631 approx. -2.5 to +2.5, in 1996.
That places Tanzania 145th out of 208 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Voice and Accountability - Governance estimate (approx. -2.5 to +2.5) in Tanzania, year by year
| Year | approx. -2.5 to +2.5 | Change |
|---|---|---|
| 1996 | -0.8631 approx. -2.5 to +2.5 | — |
| 1998 | -0.7513 approx. -2.5 to +2.5 | -13.0% |
| 2000 | -0.7497 approx. -2.5 to +2.5 | -0.2% |
| 2002 | -0.5743 approx. -2.5 to +2.5 | -23.4% |
| 2003 | -0.5453 approx. -2.5 to +2.5 | -5.1% |
| 2004 | -0.4325 approx. -2.5 to +2.5 | -20.7% |
| 2005 | -0.2939 approx. -2.5 to +2.5 | -32.1% |
| 2006 | -0.1021 approx. -2.5 to +2.5 | -65.3% |
| 2007 | -0.0368 approx. -2.5 to +2.5 | -63.9% |
| 2008 | -0.0818 approx. -2.5 to +2.5 | +122.3% |
| 2009 | -0.0787 approx. -2.5 to +2.5 | -3.8% |
| 2010 | -0.102 approx. -2.5 to +2.5 | +29.5% |
| 2011 | -0.0706 approx. -2.5 to +2.5 | -30.7% |
| 2012 | -0.117 approx. -2.5 to +2.5 | +65.6% |
| 2013 | -0.1727 approx. -2.5 to +2.5 | +47.6% |
| 2014 | -0.1592 approx. -2.5 to +2.5 | -7.8% |
| 2015 | -0.2066 approx. -2.5 to +2.5 | +29.7% |
| 2016 | -0.2949 approx. -2.5 to +2.5 | +42.8% |
| 2017 | -0.3441 approx. -2.5 to +2.5 | +16.7% |
| 2018 | -0.5042 approx. -2.5 to +2.5 | +46.5% |
| 2019 | -0.5705 approx. -2.5 to +2.5 | +13.1% |
| 2020 | -0.6863 approx. -2.5 to +2.5 | +20.3% |
| 2021 | -0.7663 approx. -2.5 to +2.5 | +11.6% |
| 2022 | -0.7168 approx. -2.5 to +2.5 | -6.5% |
| 2023 | -0.6563 approx. -2.5 to +2.5 | -8.4% |
| 2024 | -0.6953 approx. -2.5 to +2.5 | +5.9% |
| 2025 | -0.7857 approx. -2.5 to +2.5 | +13.0% |
Tanzania compared with similar countries
- Tanzania's -0.7857 approx. -2.5 to +2.5 is below the median for lower middle income countries, which is -0.7209 approx. -2.5 to +2.5, 1.1× the median. (47 countries reporting)
- Tanzania's -0.7857 approx. -2.5 to +2.5 is above the median for Sub-Saharan Africa, which is -0.9016 approx. -2.5 to +2.5, 87% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | -0.8072 approx. -2.5 to +2.5 | -0.8631 approx. -2.5 to +2.5 | -0.7513 approx. -2.5 to +2.5 | 2 |
| 2000s | -0.3217 approx. -2.5 to +2.5 | -0.7497 approx. -2.5 to +2.5 | -0.0368 approx. -2.5 to +2.5 | 9 |
| 2010s | -0.2542 approx. -2.5 to +2.5 | -0.5705 approx. -2.5 to +2.5 | -0.0706 approx. -2.5 to +2.5 | 10 |
| 2020s | -0.7178 approx. -2.5 to +2.5 | -0.7857 approx. -2.5 to +2.5 | -0.6563 approx. -2.5 to +2.5 | 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 voice and accountability - governance estimate in Tanzania?
- Voice and accountability - governance estimate in Tanzania was -0.7857 approx. -2.5 to +2.5 in 2025, according to The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG).
- What is the highest voice and accountability - governance estimate recorded in Tanzania?
- The highest recorded value was -0.0368 approx. -2.5 to +2.5 in 2007.
- What is the lowest voice and accountability - governance estimate recorded in Tanzania?
- The lowest recorded value was -0.8631 approx. -2.5 to +2.5 in 1996.
- How does Tanzania rank for voice and accountability - governance estimate?
- Tanzania ranks 145th out of 208 countries with data for 2025.
- Is voice and accountability - governance estimate rising or falling in Tanzania?
- Over the last ten years it is down 280.4%. The long-run trend across the full record is volatile.
- Where does this Tanzania data come from?
- The figures come from The Worldwide Governance Indicators: Revised Methodology for Measuring Governance Using Perception Data., World Bank Group (WBG), published as part of Voice and Accountability - Governance estimate (approx. -2.5 to +2.5). Statizoid updates them automatically from the source API.
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About this data
Voice and Accountability (VA) captures perceptions of the extent to which citizens can participate in selecting their government including electoral integrity, and of accountability mechanisms for citizens—reflected in the ability to access information, governmental oversight bodies, and a robust traditional/digital media landscape. Governance estimate from the aggregation model, in units of a standard normal distribution, i.e. ranging from approximately -2.5 to 2.5. Larger values correspond to better governance. The (country-series-time) metadata include the (a) number of sources, and (b) standard error. The number of sources indicates the number of underlying data sources on which the governance estimate is based. The standard error indicates the precision of the governance estimate. Larger values indicate less precise estimates. A 90% confidence interval for the governance estimate is given by the estimate +/- 1.64 times the standard error.