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

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

Where does this data come from?

UNESCO Institute for Statistics, published as Repeaters in Grade 1 of primary 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 1 of primary education, both sexes

Congo

36,295 number

in 2012

Viet Nam

40,650 number

in 2018

Congo rank

38th

Viet Nam rank

35th

Repeaters in Grade 1 of primary education, both sexes over time

Congo
Viet Nam

How they compare

Viet Nam currently reports 40,650 number against 36,295 number in Congo, a difference of 4,355 number.

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

Across all 8 years both countries report, Viet Nam has been ahead every year.

Congo ranks 38th and Viet Nam ranks 35th of 189 countries.

Viet Nam has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade	Congo	Viet Nam	Difference	Ahead
1970s	21,830 number	199,125 number	177,295 number	Viet Nam
1990s	22,153 number	162,835 number	140,682 number	Viet Nam
2000s	28,536 number	119,347 number	90,812 number	Viet Nam
2010s	32,902 number	56,418 number	23,516 number	Viet Nam

Averages of every year both report within each decade.

Frequently asked questions

Which has higher repeaters in grade 1 of primary education, both sexes, Congo or Viet Nam?: Viet Nam, at 40,650 number against 36,295 number in Congo as of 2018.
What is the difference in repeaters in grade 1 of primary education, both sexes between Congo and Viet Nam?: 4,355 number, with Viet Nam ahead.
How many years of comparable data are there for Congo and Viet Nam?: 8 years are reported by both, from 1979 to 2012.
How do Congo and Viet Nam rank globally for repeaters in grade 1 of primary education, both sexes?: Congo ranks 38th and Viet Nam ranks 35th of 189 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Repeaters in Grade 1 of primary 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 1 of primary education, both sexes. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 09 September 2026, from https://education.statizoid.com/compare/repeaters-in-grade-1-of-primary-education-both-sexes-number/congo-rep/viet-nam/

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<a href="https://education.statizoid.com/compare/repeaters-in-grade-1-of-primary-education-both-sexes-number/congo-rep/viet-nam/">Congo vs Viet Nam: Repeaters in Grade 1 of primary education, both sexes</a> — Statizoid

About this data

Indicator: Repeaters in Grade 1 of primary education, both sexes (number)
Unit: number
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 189 places, 5,062 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.