How many years of comparable data are there for Grenada and Korea, Democratic People's Republic of?

50 years are reported by both, from 1970 to 2019.

Where does this data come from?

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

Grenada vs Korea, Democratic People's Republic of: Theoretical duration of pre-primary education

Grenada

2 years

in 2019

Korea, Democratic People's Republic of

2 years

in 2019

Grenada rank

139th

Korea, Democratic People's Republic of rank

139th

Theoretical duration of pre-primary education over time

Grenada
Korea, Democratic People's Republic of

How they compare

Grenada currently reports 2 years against 2 years in Korea, Democratic People's Republic of, a difference of 0 years.

Across all 50 years both countries report, Korea, Democratic People's Republic of has been ahead every year.

Grenada ranks 139th and Korea, Democratic People's Republic of ranks 139th of 210 countries.

Head to head by decade

Decade	Grenada	Korea, Democratic People's Republic of	Ahead
1970s	2 years	2 years	—
1980s	2 years	2 years	—
1990s	2 years	2 years	—
2000s	2 years	2 years	—
2010s	2 years	2 years	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of pre-primary education, Grenada or Korea, Democratic People's Republic of?: Grenada, at 2 years against 2 years in Korea, Democratic People's Republic of as of 2019.
What is the difference in theoretical duration of pre-primary education between Grenada and Korea, Democratic People's Republic of?: 0 years, with Grenada ahead.
How many years of comparable data are there for Grenada and Korea, Democratic People's Republic of?: 50 years are reported by both, from 1970 to 2019.
How do Grenada and Korea, Democratic People's Republic of rank globally for theoretical duration of pre-primary education?: Grenada ranks 139th and Korea, Democratic People's Republic of ranks 139th of 210 countries.
Where does this data come from?: UNESCO Institute for Statistics, published as Theoretical duration of pre-primary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Grenada vs Korea, Democratic People's Republic of: Theoretical duration of pre-primary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 25 August 2026, from https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/grenada/korea-dem-people-s-rep/

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About this data

Indicator: Theoretical duration of pre-primary education (years)
Unit: years
Source: UNESCO Institute for Statistics
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 210 places, 10,271 data points, 1970–2020
Last refreshed: 21 August 2026

Number of grades (years) in pre-primary education.