How many years of comparable data are there for Sri Lanka and Tanzania?

29 years are reported by both, from 1996 to 2024.

Where does this data come from?

Statizoid (derived), published as Government Effectiveness - Governance estimate (approx. -2.5 to +2.5), gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Sri Lanka vs Tanzania: Government Effectiveness - Governance estimate (approx. -2.5 to)

Sri Lanka

-0.2745 approx. -2.5 to +2.5

in 2024

Tanzania

-0.2925 approx. -2.5 to +2.5

in 2024

Sri Lanka rank

127th

Tanzania rank

129th

Government Effectiveness - Governance estimate (approx. -2.5 to) over time

Sri Lanka
Tanzania

How they compare

Sri Lanka currently reports -0.2745 approx. -2.5 to +2.5 against -0.2925 approx. -2.5 to +2.5 in Tanzania, a difference of 0.018 approx. -2.5 to +2.5.

The two have swapped places 2 times across 29 shared years of data; in 1996 it was Sri Lanka ahead.

Sri Lanka ranks 127th and Tanzania ranks 129th of 205 countries.

Sri Lanka has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade	Sri Lanka	Tanzania	Difference	Ahead
1990s	-0.4785 approx. -2.5 to +2.5	-0.9262 approx. -2.5 to +2.5	0.4477 approx. -2.5 to +2.5	Sri Lanka
2000s	-0.2946 approx. -2.5 to +2.5	-0.608 approx. -2.5 to +2.5	0.3134 approx. -2.5 to +2.5	Sri Lanka
2010s	-0.0713 approx. -2.5 to +2.5	-0.4673 approx. -2.5 to +2.5	0.396 approx. -2.5 to +2.5	Sri Lanka
2020s	-0.2823 approx. -2.5 to +2.5	-0.42 approx. -2.5 to +2.5	0.1377 approx. -2.5 to +2.5	Sri Lanka

Averages of every year both report within each decade.

Frequently asked questions

Which has higher government effectiveness - governance estimate (approx. -2.5 to), Sri Lanka or Tanzania?: Sri Lanka, at -0.2745 approx. -2.5 to +2.5 against -0.2925 approx. -2.5 to +2.5 in Tanzania as of 2024.
What is the difference in government effectiveness - governance estimate (approx. -2.5 to) between Sri Lanka and Tanzania?: 0.018 approx. -2.5 to +2.5, with Sri Lanka ahead.
How many years of comparable data are there for Sri Lanka and Tanzania?: 29 years are reported by both, from 1996 to 2024.
How do Sri Lanka and Tanzania rank globally for government effectiveness - governance estimate (approx. -2.5 to)?: Sri Lanka ranks 127th and Tanzania ranks 129th of 205 countries.
Where does this data come from?: Statizoid (derived), published as Government Effectiveness - Governance estimate (approx. -2.5 to +2.5), gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sri Lanka vs Tanzania: Government Effectiveness - Governance estimate (approx. -2.5 to). Statizoid, drawing on Statizoid (derived). Retrieved 25 September 2026, from https://reference.statizoid.com/compare/government-effectiveness-governance-estimate-approx-2-5-to-2-5-gaps-filled/sri-lanka/tanzania/

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<a href="https://reference.statizoid.com/compare/government-effectiveness-governance-estimate-approx-2-5-to-2-5-gaps-filled/sri-lanka/tanzania/">Sri Lanka vs Tanzania: Government Effectiveness - Governance estimate (approx. -2.5 to)</a> — Statizoid

About this data

Indicator: Government Effectiveness - Governance estimate (approx. -2.5 to +2.5), gaps filled
Unit: approx. -2.5 to +2.5
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 205 places, 5,701 data points, 1996–2024
Last refreshed: 25 September 2026

Government Effectiveness - Governance estimate (approx. -2.5 to +2.5) with 540 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.