How many years of comparable data are there for Iran, Islamic Republic of and Somalia?

126 years are reported by both, from 1900 to 2025.

Where does this data come from?

V-Dem (2026) – processed by Our World in Data, published as Tax revenue vs. Electoral Democracy Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Somalia: Tax revenue vs. Electoral Democracy Index

Iran, Islamic Republic of

0.159

in 2025

Somalia

0.165

in 2025

Iran, Islamic Republic of rank

152nd

Somalia rank

149th

Tax revenue vs. Electoral Democracy Index over time

Iran, Islamic Republic of
Somalia

How they compare

Somalia currently reports 0.165 against 0.159 in Iran, Islamic Republic of, a difference of 0.006.

The two have swapped places 12 times across 126 shared years of data; in 1900 it was Somalia ahead.

Iran, Islamic Republic of ranks 152nd and Somalia ranks 149th of 176 countries.

Across the 13 decades both report, Iran, Islamic Republic of averaged higher in 9 and Somalia in 4.

Head to head by decade

Decade	Iran, Islamic Republic of	Somalia	Difference	Ahead
1900s	0.0599	0.037	0.0229	Iran, Islamic Republic of
1910s	0.1241	0.033	0.0911	Iran, Islamic Republic of
1920s	0.1063	0.033	0.0733	Iran, Islamic Republic of
1930s	0.1135	0.033	0.0805	Iran, Islamic Republic of
1940s	0.1424	0.0435	0.0989	Iran, Islamic Republic of
1950s	0.1055	0.151	0.0455	Somalia
1960s	0.0904	0.3342	0.2438	Somalia
1970s	0.1155	0.0759	0.0396	Iran, Islamic Republic of
1980s	0.134	0.1373	0.0033	Somalia
1990s	0.1828	0.153	0.0298	Iran, Islamic Republic of
2000s	0.1986	0.169	0.0296	Iran, Islamic Republic of
2010s	0.1724	0.1658	0.0066	Iran, Islamic Republic of
2020s	0.1582	0.1617	0.0035	Somalia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher tax revenue vs. electoral democracy index, Iran, Islamic Republic of or Somalia?: Somalia, at 0.165 against 0.159 in Iran, Islamic Republic of as of 2025.
What is the difference in tax revenue vs. electoral democracy index between Iran, Islamic Republic of and Somalia?: 0.006, with Somalia ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Somalia?: 126 years are reported by both, from 1900 to 2025.
How do Iran, Islamic Republic of and Somalia rank globally for tax revenue vs. electoral democracy index?: Iran, Islamic Republic of ranks 152nd and Somalia ranks 149th of 176 countries.
Where does this data come from?: V-Dem (2026) – processed by Our World in Data, published as Tax revenue vs. Electoral Democracy Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Somalia: Tax revenue vs. Electoral Democracy Index. Statizoid, drawing on V-Dem (2026) – processed by Our World in Data. Retrieved 11 September 2026, from https://economy.statizoid.com/compare/tax-revenues-vs-electoral-democracy-index/iran-islamic-rep/somalia-fed-rep/

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<a href="https://economy.statizoid.com/compare/tax-revenues-vs-electoral-democracy-index/iran-islamic-rep/somalia-fed-rep/">Iran, Islamic Republic of vs Somalia: Tax revenue vs. Electoral Democracy Index</a> — Statizoid

About this data

Indicator: Tax revenue vs. Electoral Democracy Index
Source: V-Dem (2026) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 176 places, 29,649 data points, 1789–2025
Last refreshed: 28 August 2026

Central estimate of the extent to which political leaders are elected under comprehensive suffrage in free and fair elections, and freedoms of association and expression are guaranteed.