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

7 years are reported by both, from 2016 to 2023.

Where does this data come from?

Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Educational attainment, Doctoral or equivalent, population 25+, total (%) (cumulative). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Bulgaria vs Iran, Islamic Republic of: Educational attainment, Doctoral or equivalent, population 25+, total

Bulgaria

0.3%

in 2023

Iran, Islamic Republic of

0.3%

in 2023

Bulgaria rank

45th

Iran, Islamic Republic of rank

43rd

Educational attainment, Doctoral or equivalent, population 25+, total over time

Bulgaria
Iran, Islamic Republic of

How they compare

Iran, Islamic Republic of currently reports 0.3% against 0.3% in Bulgaria, a difference of 0.0%.

That makes Iran, Islamic Republic of's figure about 1.1 times Bulgaria's.

The two have swapped places 2 times across 7 shared years of data; in 2016 it was Iran, Islamic Republic of ahead.

Bulgaria ranks 45th and Iran, Islamic Republic of ranks 43rd of 66 countries.

Across the 2 decades both report, Bulgaria averaged higher in 1 and Iran, Islamic Republic of in 1.

Head to head by decade

Decade	Bulgaria	Iran, Islamic Republic of	Difference	Ahead
2010s	0.3%	0.3%	0.0%	Iran, Islamic Republic of
2020s	0.4%	0.3%	0.1%	Bulgaria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher educational attainment, doctoral or equivalent, population 25+, total, Bulgaria or Iran, Islamic Republic of?: Iran, Islamic Republic of, at 0.3% against 0.3% in Bulgaria as of 2023.
What is the difference in educational attainment, doctoral or equivalent, population 25+, total between Bulgaria and Iran, Islamic Republic of?: 0.0%, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Bulgaria and Iran, Islamic Republic of?: 7 years are reported by both, from 2016 to 2023.
How do Bulgaria and Iran, Islamic Republic of rank globally for educational attainment, doctoral or equivalent, population 25+, total?: Bulgaria ranks 45th and Iran, Islamic Republic of ranks 43rd of 66 countries.
Where does this data come from?: Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Educational attainment, Doctoral or equivalent, population 25+, total (%) (cumulative). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Iran, Islamic Republic of: Educational attainment, Doctoral or equivalent, population 25+, total. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 31 August 2026, from https://education.statizoid.com/compare/educational-attainment-doctoral-or-equivalent-population-25-total-percent-cumulative/bulgaria/iran-islamic-rep/

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<a href="https://education.statizoid.com/compare/educational-attainment-doctoral-or-equivalent-population-25-total-percent-cumulative/bulgaria/iran-islamic-rep/">Bulgaria vs Iran, Islamic Republic of: Educational attainment, Doctoral or equivalent, population 25+, total</a> — Statizoid

About this data

Indicator: Educational attainment, Doctoral or equivalent, population 25+, total (%) (cumulative)
Unit: cumulative
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 66 places, 683 data points, 1994–2024
Last refreshed: 20 August 2026

The percentage of population ages 25 and over that attained or completed Doctoral or equivalent.