How many years of comparable data are there for Bulgaria and Sao Tome and Principe?

12 years are reported by both, from 1977 to 2017.

Where does this data come from?

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

Bulgaria vs Sao Tome and Principe: Repeaters in lower secondary general education, all grades, both sexes

Bulgaria

5,081 number

in 2018

Sao Tome and Principe

4,288 number

in 2017

Bulgaria rank

101st

Sao Tome and Principe rank

104th

Repeaters in lower secondary general education, all grades, both sexes over time

Bulgaria
Sao Tome and Principe

How they compare

Bulgaria currently reports 5,081 number against 4,288 number in Sao Tome and Principe, a difference of 793 number.

That makes Bulgaria's figure about 1.2 times Sao Tome and Principe's.

Across all 12 years both countries report, Bulgaria has been ahead every year.

Bulgaria ranks 101st and Sao Tome and Principe ranks 104th of 184 countries.

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

Head to head by decade

Decade	Bulgaria	Sao Tome and Principe	Difference	Ahead
1970s	9,574 number	963 number	8,610 number	Bulgaria
2000s	7,752 number	1,866 number	5,886 number	Bulgaria
2010s	5,664 number	3,034 number	2,630 number	Bulgaria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher repeaters in lower secondary general education, all grades, both sexes, Bulgaria or Sao Tome and Principe?: Bulgaria, at 5,081 number against 4,288 number in Sao Tome and Principe as of 2018.
What is the difference in repeaters in lower secondary general education, all grades, both sexes between Bulgaria and Sao Tome and Principe?: 793 number, with Bulgaria ahead.
How many years of comparable data are there for Bulgaria and Sao Tome and Principe?: 12 years are reported by both, from 1977 to 2017.
How do Bulgaria and Sao Tome and Principe rank globally for repeaters in lower secondary general education, all grades, both sexes?: Bulgaria ranks 101st and Sao Tome and Principe ranks 104th of 184 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Repeaters in lower secondary general education, all grades, both sexes (number). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Bulgaria vs Sao Tome and Principe: Repeaters in lower secondary general education, all grades, both sexes. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 10 September 2026, from https://education.statizoid.com/compare/repeaters-in-lower-secondary-general-education-all-grades-both-sexes-number/bulgaria/sao-tome-and-principe/

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<a href="https://education.statizoid.com/compare/repeaters-in-lower-secondary-general-education-all-grades-both-sexes-number/bulgaria/sao-tome-and-principe/">Bulgaria vs Sao Tome and Principe: Repeaters in lower secondary general education, all grades, both sexes</a> — Statizoid

About this data

Indicator: Repeaters in lower secondary general education, all grades, both sexes (number)
Unit: number
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 228 places, 4,898 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.