Iran, Islamic Republic of vs South Sudan: Theoretical duration of upper secondary education

Iran, Islamic Republic of
4 years
in 2020
South Sudan
4 years
in 2020
Iran, Islamic Republic of rank
5th
South Sudan rank
5th

Theoretical duration of upper secondary education over time

  • Iran, Islamic Republic of
  • South Sudan
01234197019952020

How they compare

Iran, Islamic Republic of currently reports 4 years against 4 years in South Sudan, a difference of 0 years.

Across all 22 years both countries report, South Sudan has been ahead every year.

Iran, Islamic Republic of ranks 5th and South Sudan ranks 5th of 209 countries.

South Sudan has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade Iran, Islamic Republic of South Sudan Difference Ahead
1990s 4 years 4 years 0 years
2000s 4 years 4 years 0 years
2010s 3.6 years 4 years 0.4 years South Sudan
2020s 4 years 4 years 0 years

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of upper secondary education, Iran, Islamic Republic of or South Sudan?
Iran, Islamic Republic of, at 4 years against 4 years in South Sudan as of 2020.
What is the difference in theoretical duration of upper secondary education between Iran, Islamic Republic of and South Sudan?
0 years, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and South Sudan?
22 years are reported by both, from 1999 to 2020.
How do Iran, Islamic Republic of and South Sudan rank globally for theoretical duration of upper secondary education?
Iran, Islamic Republic of ranks 5th and South Sudan ranks 5th of 209 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as Theoretical duration of upper secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs South Sudan: Theoretical duration of upper secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 04 September 2026, from https://education.statizoid.com/compare/theoretical-duration-of-upper-secondary-education-years/iran-islamic-rep/south-sudan/

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About this data

Indicator
Theoretical duration of upper secondary education (years)
Unit
years
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
209 places, 10,366 data points, 1970–2020
Last refreshed

Number of grades (years) in upper secondary education.