What is the difference in secondary education, duration between Eritrea, The State of and Sierra Leone?

0 years, with Eritrea, The State of ahead.

How many years of comparable data are there for Eritrea, The State of and Sierra Leone?

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.

Eritrea, The State of vs Sierra Leone: Secondary education, duration

Eritrea, The State of

7 years

in 2025

Sierra Leone

7 years

in 2025

Eritrea, The State of rank

26th

Sierra Leone rank

26th

Secondary education, duration over time

Eritrea, The State of
Sierra Leone

How they compare

Eritrea, The State of currently reports 7 years against 7 years in Sierra Leone, a difference of 0 years.

The two have swapped places 2 times across 56 shared years of data; in 1970 it was Sierra Leone ahead.

Eritrea, The State of ranks 26th and Sierra Leone ranks 26th of 209 countries.

Across the 6 decades both report, Eritrea, The State of averaged higher in 2 and Sierra Leone in 3.

Head to head by decade

Decade	Eritrea, The State of	Sierra Leone	Difference	Ahead
1970s	6 years	7 years	1 years	Sierra Leone
1980s	6 years	7 years	1 years	Sierra Leone
1990s	6 years	6.9 years	0.9 years	Sierra Leone
2000s	6.6 years	6 years	0.6 years	Eritrea, The State of
2010s	7 years	6.7 years	0.3 years	Eritrea, The State of
2020s	7 years	7 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher secondary education, duration, Eritrea, The State of or Sierra Leone?: Eritrea, The State of, at 7 years against 7 years in Sierra Leone as of 2025.
What is the difference in secondary education, duration between Eritrea, The State of and Sierra Leone?: 0 years, with Eritrea, The State of ahead.
How many years of comparable data are there for Eritrea, The State of and Sierra Leone?: 56 years are reported by both, from 1970 to 2025.
How do Eritrea, The State of and Sierra Leone rank globally for secondary education, duration?: Eritrea, The State of ranks 26th and Sierra Leone ranks 26th 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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Eritrea, The State of vs Sierra Leone: 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/eritrea/sierra-leone/

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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.