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

14 years are reported by both, from 1984 to 2012.

Where does this data come from?

UNESCO Institute for Statistics, published as Repeaters in Grade 2 of lower secondary general education, both sexes (number). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Congo vs Iran, Islamic Republic of: Repeaters in Grade 2 of lower secondary general education, both sexes

Congo

9,460 number

in 2012

Iran, Islamic Republic of

8,753 number

in 2017

Congo rank

54th

Iran, Islamic Republic of rank

55th

Repeaters in Grade 2 of lower secondary general education, both sexes over time

Congo
Iran, Islamic Republic of

How they compare

Congo currently reports 9,460 number against 8,753 number in Iran, Islamic Republic of, a difference of 707 number.

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

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

Congo ranks 54th and Iran, Islamic Republic of ranks 55th of 185 countries.

Iran, Islamic Republic of has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade	Congo	Iran, Islamic Republic of	Difference	Ahead
1980s	14,435 number	91,691 number	77,256 number	Iran, Islamic Republic of
1990s	11,554 number	137,808 number	126,254 number	Iran, Islamic Republic of
2000s	8,628 number	128,397 number	119,768 number	Iran, Islamic Republic of
2010s	9,293 number	24,769 number	15,476 number	Iran, Islamic Republic of

Averages of every year both report within each decade.

Frequently asked questions

Which has higher repeaters in grade 2 of lower secondary general education, both sexes, Congo or Iran, Islamic Republic of?: Congo, at 9,460 number against 8,753 number in Iran, Islamic Republic of as of 2012.
What is the difference in repeaters in grade 2 of lower secondary general education, both sexes between Congo and Iran, Islamic Republic of?: 707 number, with Congo ahead.
How many years of comparable data are there for Congo and Iran, Islamic Republic of?: 14 years are reported by both, from 1984 to 2012.
How do Congo and Iran, Islamic Republic of rank globally for repeaters in grade 2 of lower secondary general education, both sexes?: Congo ranks 54th and Iran, Islamic Republic of ranks 55th of 185 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Repeaters in Grade 2 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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Congo vs Iran, Islamic Republic of: Repeaters in Grade 2 of lower secondary general education, both sexes. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 07 September 2026, from https://education.statizoid.com/compare/repeaters-in-grade-2-of-lower-secondary-general-education-both-sexes-number/congo-rep/iran-islamic-rep/

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<a href="https://education.statizoid.com/compare/repeaters-in-grade-2-of-lower-secondary-general-education-both-sexes-number/congo-rep/iran-islamic-rep/">Congo vs Iran, Islamic Republic of: Repeaters in Grade 2 of lower secondary general education, both sexes</a> — Statizoid

About this data

Indicator: Repeaters in Grade 2 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, 4,052 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.