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

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

Where does this data come from?

UNESCO Institute for Statistics, published as Repeaters in Grade 1 of lower secondary general education, both sexes (number). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Viet Nam: Repeaters in Grade 1 of lower secondary general education, both sexes

Iran, Islamic Republic of

17,956 number

in 2017

Viet Nam

16,660 number

in 2018

Iran, Islamic Republic of rank

42nd

Viet Nam rank

45th

Repeaters in Grade 1 of lower secondary general education, both sexes over time

Iran, Islamic Republic of
Viet Nam

How they compare

Iran, Islamic Republic of currently reports 17,956 number against 16,660 number in Viet Nam, a difference of 1,296 number.

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

Across all 6 years both countries report, Iran, Islamic Republic of has been ahead every year.

Iran, Islamic Republic of ranks 42nd and Viet Nam ranks 45th of 185 countries.

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

Head to head by decade

Decade	Iran, Islamic Republic of	Viet Nam	Difference	Ahead
1990s	245,687 number	52,062 number	193,625 number	Iran, Islamic Republic of
2000s	215,319 number	51,108 number	164,211 number	Iran, Islamic Republic of
2010s	42,232 number	34,687 number	7,546 number	Iran, Islamic Republic of

Averages of every year both report within each decade.

Frequently asked questions

Which has higher repeaters in grade 1 of lower secondary general education, both sexes, Iran, Islamic Republic of or Viet Nam?: Iran, Islamic Republic of, at 17,956 number against 16,660 number in Viet Nam as of 2017.
What is the difference in repeaters in grade 1 of lower secondary general education, both sexes between Iran, Islamic Republic of and Viet Nam?: 1,296 number, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Viet Nam?: 6 years are reported by both, from 1999 to 2012.
How do Iran, Islamic Republic of and Viet Nam rank globally for repeaters in grade 1 of lower secondary general education, both sexes?: Iran, Islamic Republic of ranks 42nd and Viet Nam ranks 45th of 185 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Repeaters in Grade 1 of lower secondary general education, both sexes (number). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Viet Nam: Repeaters in Grade 1 of lower secondary general education, both sexes. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 12 September 2026, from https://education.statizoid.com/compare/repeaters-in-grade-1-of-lower-secondary-general-education-both-sexes-number/iran-islamic-rep/viet-nam/

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<a href="https://education.statizoid.com/compare/repeaters-in-grade-1-of-lower-secondary-general-education-both-sexes-number/iran-islamic-rep/viet-nam/">Iran, Islamic Republic of vs Viet Nam: Repeaters in Grade 1 of lower secondary general education, both sexes</a> — Statizoid

About this data

Indicator: Repeaters in Grade 1 of lower secondary general education, both sexes (number)
Unit: number
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 185 places, 4,260 data points, 1970–2020
Last refreshed: 04 September 2026

Number of pupils in the specified grade who are enrolled in the same grade for a second (or further) year.