How many years of comparable data are there for Iran and Tuvalu?

21 years are reported by both, from 2004 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.

Iran vs Tuvalu: Government Effectiveness - Governance estimate (approx. -2.5 to)

Iran

-0.7061 approx. -2.5 to +2.5

in 2024

Tuvalu

-0.691 approx. -2.5 to +2.5

in 2024

Iran rank

156th

Tuvalu rank

154th

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

Iran
Tuvalu

How they compare

Tuvalu currently reports -0.691 approx. -2.5 to +2.5 against -0.7061 approx. -2.5 to +2.5 in Iran, a difference of 0.0151 approx. -2.5 to +2.5.

The two have swapped places 3 times across 21 shared years of data; in 2004 it was Iran ahead.

Iran ranks 156th and Tuvalu ranks 154th of 205 countries.

Across the 3 decades both report, Iran averaged higher in 1 and Tuvalu in 2.

Head to head by decade

Decade	Iran	Tuvalu	Difference	Ahead
2000s	-0.7285 approx. -2.5 to +2.5	-0.4634 approx. -2.5 to +2.5	0.265 approx. -2.5 to +2.5	Tuvalu
2010s	-0.3812 approx. -2.5 to +2.5	-0.6543 approx. -2.5 to +2.5	0.2731 approx. -2.5 to +2.5	Iran
2020s	-0.7036 approx. -2.5 to +2.5	-0.5377 approx. -2.5 to +2.5	0.1658 approx. -2.5 to +2.5	Tuvalu

Averages of every year both report within each decade.

Frequently asked questions

Which has higher government effectiveness - governance estimate (approx. -2.5 to), Iran or Tuvalu?: Tuvalu, at -0.691 approx. -2.5 to +2.5 against -0.7061 approx. -2.5 to +2.5 in Iran as of 2024.
What is the difference in government effectiveness - governance estimate (approx. -2.5 to) between Iran and Tuvalu?: 0.0151 approx. -2.5 to +2.5, with Tuvalu ahead.
How many years of comparable data are there for Iran and Tuvalu?: 21 years are reported by both, from 2004 to 2024.
How do Iran and Tuvalu rank globally for government effectiveness - governance estimate (approx. -2.5 to)?: Iran ranks 156th and Tuvalu ranks 154th 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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Iran vs Tuvalu: 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/iran-islamic-rep/tuvalu/

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<a href="https://reference.statizoid.com/compare/government-effectiveness-governance-estimate-approx-2-5-to-2-5-gaps-filled/iran-islamic-rep/tuvalu/">Iran vs Tuvalu: 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.