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

59 years are reported by both, from 1961 to 2019.

Where does this data come from?

Statizoid (derived), published as Emission Totals - Emissions (CH4) - Rice Cultivation, per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Japan vs Portugal: Emission Totals - Emissions (CH4) - Rice Cultivation, per unit of GDP

Japan

0 units per US$ of GDP

in 2019

Portugal

0 units per US$ of GDP

in 2019

Japan rank

72nd

Portugal rank

73rd

Emission Totals - Emissions (CH4) - Rice Cultivation, per unit of GDP over time

Japan
Portugal

How they compare

Japan currently reports 0 units per US$ of GDP against 0 units per US$ of GDP in Portugal, a difference of 0 units per US$ of GDP.

The two have swapped places 10 times across 59 shared years of data; in 1961 it was Japan ahead.

Japan ranks 72nd and Portugal ranks 73rd of 116 countries.

Across the 6 decades both report, Japan averaged higher in 3 and Portugal in 3.

Head to head by decade

Decade	Japan	Portugal	Difference	Ahead
1960s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Japan
1970s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Japan
1980s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Portugal
1990s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Portugal
2000s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Japan
2010s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Portugal

Averages of every year both report within each decade.

Frequently asked questions

Which has higher emission totals - emissions (ch4) - rice cultivation, per unit of gdp, Japan or Portugal?: Japan, at 0 units per US$ of GDP against 0 units per US$ of GDP in Portugal as of 2019.
What is the difference in emission totals - emissions (ch4) - rice cultivation, per unit of gdp between Japan and Portugal?: 0 units per US$ of GDP, with Japan ahead.
How many years of comparable data are there for Japan and Portugal?: 59 years are reported by both, from 1961 to 2019.
How do Japan and Portugal rank globally for emission totals - emissions (ch4) - rice cultivation, per unit of gdp?: Japan ranks 72nd and Portugal ranks 73rd of 116 countries.
Where does this data come from?: Statizoid (derived), published as Emission Totals - Emissions (CH4) - Rice Cultivation, 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 Portugal: Emission Totals - Emissions (CH4) - Rice Cultivation, per unit of GDP. Statizoid, drawing on Statizoid (derived). Retrieved 29 September 2026, from https://reference.statizoid.com/compare/emission-totals-emissions-ch4-rice-cultivation-per-unit-of-gdp/japan/portugal/

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<a href="https://reference.statizoid.com/compare/emission-totals-emissions-ch4-rice-cultivation-per-unit-of-gdp/japan/portugal/">Japan vs Portugal: Emission Totals - Emissions (CH4) - Rice Cultivation, per unit of GDP</a> — Statizoid

About this data

Indicator: Emission Totals - Emissions (CH4) - Rice Cultivation, per unit of GDP
Unit: units per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 116 places, 6,015 data points, 1961–2019
Last refreshed: 25 September 2026

Emission Totals - Emissions (CH4) - Rice Cultivation divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.