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

14 years are reported by both, from 1999 to 2012.

Where does this data come from?

UNESCO Institute for Statistics, published as Theoretical duration of post-secondary non-tertiary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Comoros vs Iran, Islamic Republic of: Theoretical duration of post-secondary non-tertiary education

Comoros

2 years

in 2019

Iran, Islamic Republic of

2 years

in 2012

Comoros rank

15th

Iran, Islamic Republic of rank

15th

Theoretical duration of post-secondary non-tertiary education over time

Comoros
Iran, Islamic Republic of

How they compare

Comoros currently reports 2 years against 2 years in Iran, Islamic Republic of, a difference of 0 years.

Across all 14 years both countries report, Iran, Islamic Republic of has been ahead every year.

Comoros ranks 15th and Iran, Islamic Republic of ranks 15th of 168 countries.

Iran, Islamic Republic of has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Comoros	Iran, Islamic Republic of	Difference	Ahead
1990s	1 years	2 years	1 years	Iran, Islamic Republic of
2000s	1 years	2 years	1 years	Iran, Islamic Republic of
2010s	2 years	2 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of post-secondary non-tertiary education, Comoros or Iran, Islamic Republic of?: Comoros, at 2 years against 2 years in Iran, Islamic Republic of as of 2019.
What is the difference in theoretical duration of post-secondary non-tertiary education between Comoros and Iran, Islamic Republic of?: 0 years, with Comoros ahead.
How many years of comparable data are there for Comoros and Iran, Islamic Republic of?: 14 years are reported by both, from 1999 to 2012.
How do Comoros and Iran, Islamic Republic of rank globally for theoretical duration of post-secondary non-tertiary education?: Comoros ranks 15th and Iran, Islamic Republic of ranks 15th of 168 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Theoretical duration of post-secondary non-tertiary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Comoros vs Iran, Islamic Republic of: Theoretical duration of post-secondary non-tertiary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 01 September 2026, from https://education.statizoid.com/compare/theoretical-duration-of-post-secondary-non-tertiary-education-years/comoros/iran-islamic-rep/

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About this data

Indicator: Theoretical duration of post-secondary non-tertiary education (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 168 places, 3,181 data points, 1970–2020
Last refreshed: 21 August 2026

Number of grades (years) in post-secondary education.