How many years of comparable data are there for Japan and Puerto Rico?

55 years are reported by both, from 1970 to 2024.

Where does this data come from?

Statizoid (derived), published as Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Japan vs Puerto Rico: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit

Japan

0 Mt CO2e per US$ of GDP

in 2024

Puerto Rico

0 Mt CO2e per US$ of GDP

in 2024

Japan rank

181st

Puerto Rico rank

180th

Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit over time

Japan
Puerto Rico

How they compare

Puerto Rico currently reports 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Japan, a difference of 0 Mt CO2e per US$ of GDP.

The two have swapped places 1 time across 55 shared years of data; in 1970 it was Japan ahead.

Japan ranks 181st and Puerto Rico ranks 180th of 200 countries.

Puerto Rico has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Japan	Puerto Rico	Difference	Ahead
1970s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Puerto Rico
1980s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Puerto Rico
1990s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Puerto Rico
2000s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Puerto Rico
2010s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Puerto Rico
2020s	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	0 Mt CO2e per US$ of GDP	Puerto Rico

Averages of every year both report within each decade.

Frequently asked questions

Which has higher methane (ch4) emissions (total) excluding lulucf (mt co2e), per unit, Japan or Puerto Rico?: Puerto Rico, at 0 Mt CO2e per US$ of GDP against 0 Mt CO2e per US$ of GDP in Japan as of 2024.
What is the difference in methane (ch4) emissions (total) excluding lulucf (mt co2e), per unit between Japan and Puerto Rico?: 0 Mt CO2e per US$ of GDP, with Puerto Rico ahead.
How many years of comparable data are there for Japan and Puerto Rico?: 55 years are reported by both, from 1970 to 2024.
How do Japan and Puerto Rico rank globally for methane (ch4) emissions (total) excluding lulucf (mt co2e), per unit?: Japan ranks 181st and Puerto Rico ranks 180th of 200 countries.
Where does this data come from?: Statizoid (derived), published as Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs Puerto Rico: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://environment.statizoid.com/compare/methane-ch4-emissions-total-excluding-lulucf-mt-co2e-per-unit-of-gdp/japan/puerto-rico-us/

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<a href="https://environment.statizoid.com/compare/methane-ch4-emissions-total-excluding-lulucf-mt-co2e-per-unit-of-gdp/japan/puerto-rico-us/">Japan vs Puerto Rico: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit</a> — Statizoid

About this data

Indicator: Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e), per unit of GDP
Unit: Mt CO2e per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 247 places, 12,498 data points, 1970–2024
Last refreshed: 21 September 2026

Methane (CH4) emissions (total) excluding LULUCF (Mt CO2e) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.