What is the difference in secondary education, duration between Congo, Democratic Republic of the and Portugal?

0 years, with Congo, Democratic Republic of the ahead.

How many years of comparable data are there for Congo, Democratic Republic of the and Portugal?

56 years are reported by both, from 1970 to 2025.

Where does this data come from?

Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Secondary education, duration (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Congo, Democratic Republic of the vs Portugal: Secondary education, duration

Congo, Democratic Republic of the

6 years

in 2025

Portugal

6 years

in 2025

Congo, Democratic Republic of the rank

91st

Portugal rank

91st

Secondary education, duration over time

Congo, Democratic Republic of the
Portugal

How they compare

Congo, Democratic Republic of the currently reports 6 years against 6 years in Portugal, a difference of 0 years.

The two have swapped places 1 time across 56 shared years of data; in 1970 it was Congo, Democratic Republic of the ahead.

Congo, Democratic Republic of the ranks 91st and Portugal ranks 91st of 209 countries.

Congo, Democratic Republic of the has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Congo, Democratic Republic of the	Portugal	Difference	Ahead
1970s	6 years	5 years	1 years	Congo, Democratic Republic of the
1980s	6 years	5.9 years	0.1 years	Congo, Democratic Republic of the
1990s	6 years	6 years	0 years	—
2000s	6 years	6 years	0 years	—
2010s	6 years	6 years	0 years	—
2020s	6 years	6 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher secondary education, duration, Congo, Democratic Republic of the or Portugal?: Congo, Democratic Republic of the, at 6 years against 6 years in Portugal as of 2025.
What is the difference in secondary education, duration between Congo, Democratic Republic of the and Portugal?: 0 years, with Congo, Democratic Republic of the ahead.
How many years of comparable data are there for Congo, Democratic Republic of the and Portugal?: 56 years are reported by both, from 1970 to 2025.
How do Congo, Democratic Republic of the and Portugal rank globally for secondary education, duration?: Congo, Democratic Republic of the ranks 91st and Portugal ranks 91st of 209 countries.
Where does this data come from?: Data API, UN Educational, Scientific and Cultural Organization (UNESCO), published as Secondary education, duration (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Congo, Democratic Republic of the vs Portugal: Secondary education, duration. Statizoid, drawing on Data API, UN Educational, Scientific and Cultural Organization (UNESCO). Retrieved 18 August 2026, from https://education.statizoid.com/compare/secondary-education-duration-years/congo-dem-rep/portugal/

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About this data

Indicator: Secondary education, duration (years)
Unit: years
Source: Data API, UN Educational, Scientific and Cultural Organization (UNESCO)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 255 places, 13,986 data points, 1970–2025
Last refreshed: 06 August 2026

Secondary duration refers to the number of grades (years) in secondary school.