How many years of comparable data are there for Congo and Viet Nam?

6 years are reported by both, from 1979 to 2012.

Where does this data come from?

UNESCO Institute for Statistics, published as Repeaters in Grade 3 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 Viet Nam: Repeaters in Grade 3 of lower secondary general education, both sexes

Congo

8,832 number

in 2012

Viet Nam

9,736 number

in 2018

Congo rank

42nd

Viet Nam rank

40th

Repeaters in Grade 3 of lower secondary general education, both sexes over time

Congo
Viet Nam

How they compare

Viet Nam currently reports 9,736 number against 8,832 number in Congo, a difference of 904 number.

That makes Viet Nam's figure about 1.1 times Congo's.

Across all 6 years both countries report, Viet Nam has been ahead every year.

Congo ranks 42nd and Viet Nam ranks 40th of 174 countries.

Viet Nam has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Congo	Viet Nam	Difference	Ahead
1970s	6,036 number	33,008 number	26,972 number	Viet Nam
2000s	5,763 number	18,000 number	12,237 number	Viet Nam
2010s	8,074 number	18,194 number	10,119 number	Viet Nam

Averages of every year both report within each decade.

Frequently asked questions

Which has higher repeaters in grade 3 of lower secondary general education, both sexes, Congo or Viet Nam?: Viet Nam, at 9,736 number against 8,832 number in Congo as of 2018.
What is the difference in repeaters in grade 3 of lower secondary general education, both sexes between Congo and Viet Nam?: 904 number, with Viet Nam ahead.
How many years of comparable data are there for Congo and Viet Nam?: 6 years are reported by both, from 1979 to 2012.
How do Congo and Viet Nam rank globally for repeaters in grade 3 of lower secondary general education, both sexes?: Congo ranks 42nd and Viet Nam ranks 40th of 174 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Repeaters in Grade 3 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 Viet Nam: Repeaters in Grade 3 of lower secondary general education, both sexes. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 08 September 2026, from https://education.statizoid.com/compare/repeaters-in-grade-3-of-lower-secondary-general-education-both-sexes-number/congo-rep/viet-nam/

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<a href="https://education.statizoid.com/compare/repeaters-in-grade-3-of-lower-secondary-general-education-both-sexes-number/congo-rep/viet-nam/">Congo vs Viet Nam: Repeaters in Grade 3 of lower secondary general education, both sexes</a> — Statizoid

About this data

Indicator: Repeaters in Grade 3 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: 174 places, 3,720 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.