What is the difference in theoretical duration of upper secondary education between Dominican Republic and Sierra Leone?

0 years, with Dominican Republic ahead.

How many years of comparable data are there for Dominican Republic and Sierra Leone?

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 upper secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Dominican Republic vs Sierra Leone: Theoretical duration of upper secondary education

Dominican Republic

4 years

in 2020

Sierra Leone

4 years

in 2020

Dominican Republic rank

5th

Sierra Leone rank

5th

Theoretical duration of upper secondary education over time

Dominican Republic
Sierra Leone

How they compare

Dominican Republic currently reports 4 years against 4 years in Sierra Leone, a difference of 0 years.

The two have swapped places 1 time across 51 shared years of data; in 1970 it was Dominican Republic ahead.

Dominican Republic ranks 5th and Sierra Leone ranks 5th of 209 countries.

Across the 6 decades both report, Dominican Republic averaged higher in 4 and Sierra Leone in 1.

Head to head by decade

Decade	Dominican Republic	Sierra Leone	Difference	Ahead
1970s	4 years	2 years	2 years	Dominican Republic
1980s	4 years	2 years	2 years	Dominican Republic
1990s	4 years	2.3 years	1.7 years	Dominican Republic
2000s	4 years	3 years	1 years	Dominican Republic
2010s	3.6 years	3.7 years	0.1 years	Sierra Leone
2020s	4 years	4 years	0 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of upper secondary education, Dominican Republic or Sierra Leone?: Dominican Republic, at 4 years against 4 years in Sierra Leone as of 2020.
What is the difference in theoretical duration of upper secondary education between Dominican Republic and Sierra Leone?: 0 years, with Dominican Republic ahead.
How many years of comparable data are there for Dominican Republic and Sierra Leone?: 51 years are reported by both, from 1970 to 2020.
How do Dominican Republic and Sierra Leone rank globally for theoretical duration of upper secondary education?: Dominican Republic ranks 5th and Sierra Leone ranks 5th of 209 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Theoretical duration of upper secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Dominican Republic vs Sierra Leone: Theoretical duration of upper secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 06 September 2026, from https://education.statizoid.com/compare/theoretical-duration-of-upper-secondary-education-years/dominican-republic/sierra-leone/

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About this data

Indicator: Theoretical duration of upper 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: 04 September 2026

Number of grades (years) in upper secondary education.