What is the difference in theoretical duration of pre-primary education between Lao People's Democratic Republic and Puerto Rico?

0 years, with Lao People's Democratic Republic ahead.

How many years of comparable data are there for Lao People's Democratic Republic and Puerto Rico?

49 years are reported by both, from 1971 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.

Lao People's Democratic Republic vs Puerto Rico: Theoretical duration of pre-primary education

Lao People's Democratic Republic

3 years

in 2019

Puerto Rico

3 years

in 2019

Lao People's Democratic Republic rank

21st

Puerto Rico rank

21st

Theoretical duration of pre-primary education over time

Lao People's Democratic Republic
Puerto Rico

How they compare

Lao People's Democratic Republic currently reports 3 years against 3 years in Puerto Rico, a difference of 0 years.

The two have swapped places 1 time across 49 shared years of data; in 1971 it was Lao People's Democratic Republic ahead.

Lao People's Democratic Republic ranks 21st and Puerto Rico ranks 21st of 210 countries.

Lao People's Democratic Republic has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	Lao People's Democratic Republic	Puerto Rico	Difference	Ahead
1970s	3 years	2 years	1 years	Lao People's Democratic Republic
1980s	3 years	2 years	1 years	Lao People's Democratic Republic
1990s	3 years	2 years	1 years	Lao People's Democratic Republic
2000s	3 years	2 years	1 years	Lao People's Democratic Republic
2010s	3 years	2.7 years	0.3 years	Lao People's Democratic Republic

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of pre-primary education, Lao People's Democratic Republic or Puerto Rico?: Lao People's Democratic Republic, at 3 years against 3 years in Puerto Rico as of 2019.
What is the difference in theoretical duration of pre-primary education between Lao People's Democratic Republic and Puerto Rico?: 0 years, with Lao People's Democratic Republic ahead.
How many years of comparable data are there for Lao People's Democratic Republic and Puerto Rico?: 49 years are reported by both, from 1971 to 2019.
How do Lao People's Democratic Republic and Puerto Rico rank globally for theoretical duration of pre-primary education?: Lao People's Democratic Republic ranks 21st and Puerto Rico ranks 21st 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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Lao People's Democratic Republic vs Puerto Rico: 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/lao-pdr/puerto-rico-us/

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<a href="https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/lao-pdr/puerto-rico-us/">Lao People's Democratic Republic vs Puerto Rico: Theoretical duration of pre-primary education</a> — Statizoid

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.