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

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

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

51 years are reported by both, from 1970 to 2020.

Where does this data come from?

UNESCO Institute for Statistics, published as Theoretical duration of lower secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Congo, Democratic Republic of the vs Zambia: Theoretical duration of lower secondary education

Congo, Democratic Republic of the

2 years

in 2020

Zambia

2 years

in 2020

Congo, Democratic Republic of the rank

188th

Zambia rank

188th

Theoretical duration of lower secondary education over time

Congo, Democratic Republic of the
Zambia

How they compare

Congo, Democratic Republic of the currently reports 2 years against 2 years in Zambia, a difference of 0 years.

Across all 51 years both countries report, Zambia has been ahead every year.

Congo, Democratic Republic of the ranks 188th and Zambia ranks 188th of 209 countries.

Zambia has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Congo, Democratic Republic of the	Zambia	Difference	Ahead
1970s	2 years	3 years	1 years	Zambia
1980s	2 years	2.5 years	0.5 years	Zambia
1990s	2 years	2 years	0 years	—
2000s	2 years	2 years	0 years	—
2010s	2 years	2 years	0 years	—
2020s	2 years	2 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of lower secondary education, Congo, Democratic Republic of the or Zambia?: Congo, Democratic Republic of the, at 2 years against 2 years in Zambia as of 2020.
What is the difference in theoretical duration of lower secondary education between Congo, Democratic Republic of the and Zambia?: 0 years, with Congo, Democratic Republic of the ahead.
How many years of comparable data are there for Congo, Democratic Republic of the and Zambia?: 51 years are reported by both, from 1970 to 2020.
How do Congo, Democratic Republic of the and Zambia rank globally for theoretical duration of lower secondary education?: Congo, Democratic Republic of the ranks 188th and Zambia ranks 188th of 209 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Theoretical duration of lower secondary education (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 Zambia: Theoretical duration of lower secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 31 August 2026, from https://education.statizoid.com/compare/theoretical-duration-of-lower-secondary-education-years/congo-dem-rep/zambia/

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About this data

Indicator: Theoretical duration of lower secondary education (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 209 places, 10,366 data points, 1970–2020
Last refreshed: 21 August 2026

Number of grades (years) in lower secondary education.