What is the difference in theoretical duration of pre-primary education between Hong Kong, China and Puerto Rico?

0 years, with Hong Kong, China ahead.

How many years of comparable data are there for Hong Kong, China 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.

Hong Kong, China vs Puerto Rico: Theoretical duration of pre-primary education

Hong Kong, China

3 years

in 2019

Puerto Rico

3 years

in 2019

Hong Kong, China rank

21st

Puerto Rico rank

21st

Theoretical duration of pre-primary education over time

Hong Kong, China
Puerto Rico

How they compare

Hong Kong, China 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 Hong Kong, China ahead.

Hong Kong, China ranks 21st and Puerto Rico ranks 21st of 210 countries.

Hong Kong, China has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	Hong Kong, China	Puerto Rico	Difference	Ahead
1970s	3 years	2 years	1 years	Hong Kong, China
1980s	3 years	2 years	1 years	Hong Kong, China
1990s	3 years	2 years	1 years	Hong Kong, China
2000s	3 years	2 years	1 years	Hong Kong, China
2010s	3 years	2.7 years	0.3 years	Hong Kong, China

Averages of every year both report within each decade.

Frequently asked questions

Which has higher theoretical duration of pre-primary education, Hong Kong, China or Puerto Rico?: Hong Kong, China, at 3 years against 3 years in Puerto Rico as of 2019.
What is the difference in theoretical duration of pre-primary education between Hong Kong, China and Puerto Rico?: 0 years, with Hong Kong, China ahead.
How many years of comparable data are there for Hong Kong, China and Puerto Rico?: 49 years are reported by both, from 1971 to 2019.
How do Hong Kong, China and Puerto Rico rank globally for theoretical duration of pre-primary education?: Hong Kong, China 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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Hong Kong, China vs Puerto Rico: Theoretical duration of pre-primary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 07 September 2026, from https://reference.statizoid.com/compare/theoretical-duration-of-pre-primary-education-years/hong-kong-sar-china/puerto-rico-us/

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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: 04 September 2026

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