Brunei Darussalam vs Iran, Islamic Republic of: Theoretical duration of lower secondary education

Brunei Darussalam
2 years
in 2020
Iran, Islamic Republic of
2 years
in 2020
Brunei Darussalam rank
188th
Iran, Islamic Republic of rank
188th

Theoretical duration of lower secondary education over time

  • Brunei Darussalam
  • Iran, Islamic Republic of
012345197019952020

How they compare

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

The two have swapped places 1 time across 51 shared years of data; in 1970 it was Brunei Darussalam ahead.

Brunei Darussalam ranks 188th and Iran, Islamic Republic of ranks 188th of 209 countries.

Across the 6 decades both report, Brunei Darussalam averaged higher in 3 and Iran, Islamic Republic of in 1.

Head to head by decade

Decade Brunei Darussalam Iran, Islamic Republic of Difference Ahead
1970s 5 years 3 years 2 years Brunei Darussalam
1980s 5 years 3 years 2 years Brunei Darussalam
1990s 4.6 years 3 years 1.6 years Brunei Darussalam
2000s 3 years 3 years 0 years
2010s 2 years 2.7 years 0.7 years Iran, Islamic Republic of
2020s 2 years 2 years 0 years

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of lower secondary education, Brunei Darussalam or Iran, Islamic Republic of?
Brunei Darussalam, at 2 years against 2 years in Iran, Islamic Republic of as of 2020.
What is the difference in theoretical duration of lower secondary education between Brunei Darussalam and Iran, Islamic Republic of?
0 years, with Brunei Darussalam ahead.
How many years of comparable data are there for Brunei Darussalam and Iran, Islamic Republic of?
51 years are reported by both, from 1970 to 2020.
How do Brunei Darussalam and Iran, Islamic Republic of rank globally for theoretical duration of lower secondary education?
Brunei Darussalam ranks 188th and Iran, Islamic Republic of ranks 188th of 209 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as Theoretical duration of lower secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Brunei Darussalam vs Iran, Islamic Republic of: Theoretical duration of lower secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 04 September 2026, from https://education.statizoid.com/compare/theoretical-duration-of-lower-secondary-education-years/brunei-darussalam/iran-islamic-rep/

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About this data

Indicator
Theoretical duration of lower 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 lower secondary education.