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

62 years are reported by both, from 1961 to 2023.

Where does this data come from?

Statizoid (derived), published as Wheat — Crop residues (Direct emissions N2O), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Chad vs Portugal: Wheat — Crop residues (Direct emissions N2O), per unit of GDP

Chad

0 kt per US$ of GDP

in 2023

Portugal

0 kt per US$ of GDP

in 2023

Chad rank

97th

Portugal rank

95th

Wheat — Crop residues (Direct emissions N2O), per unit of GDP over time

Chad
Portugal

How they compare

Portugal currently reports 0 kt per US$ of GDP against 0 kt per US$ of GDP in Chad, a difference of 0 kt per US$ of GDP.

That makes Portugal's figure about 1.7 times Chad's.

The two have swapped places 12 times across 62 shared years of data; in 1961 it was Portugal ahead.

Chad ranks 97th and Portugal ranks 95th of 110 countries.

Portugal has averaged higher in every one of the 7 decades both report.

Head to head by decade

Decade	Chad	Portugal	Difference	Ahead
1960s	0 kt per US$ of GDP	0 kt per US$ of GDP	0 kt per US$ of GDP	Portugal
1970s	0 kt per US$ of GDP	0 kt per US$ of GDP	0 kt per US$ of GDP	Portugal
1980s	0 kt per US$ of GDP	0 kt per US$ of GDP	0 kt per US$ of GDP	Portugal
1990s	0 kt per US$ of GDP	0 kt per US$ of GDP	0 kt per US$ of GDP	Portugal
2000s	0 kt per US$ of GDP	0 kt per US$ of GDP	0 kt per US$ of GDP	Portugal
2010s	0 kt per US$ of GDP	0 kt per US$ of GDP	0 kt per US$ of GDP	Portugal
2020s	0 kt per US$ of GDP	0 kt per US$ of GDP	0 kt per US$ of GDP	Portugal

Averages of every year both report within each decade.

Frequently asked questions

Which has higher wheat — crop residues (direct emissions n2o), per unit of gdp, Chad or Portugal?: Portugal, at 0 kt per US$ of GDP against 0 kt per US$ of GDP in Chad as of 2023.
What is the difference in wheat — crop residues (direct emissions n2o), per unit of gdp between Chad and Portugal?: 0 kt per US$ of GDP, with Portugal ahead.
How many years of comparable data are there for Chad and Portugal?: 62 years are reported by both, from 1961 to 2023.
How do Chad and Portugal rank globally for wheat — crop residues (direct emissions n2o), per unit of gdp?: Chad ranks 97th and Portugal ranks 95th of 110 countries.
Where does this data come from?: Statizoid (derived), published as Wheat — Crop residues (Direct emissions N2O), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs Portugal: Wheat — Crop residues (Direct emissions N2O), per unit of GDP. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://climate.statizoid.com/compare/wheat-crop-residues-direct-emissions-n2o-per-unit-of-gdp/chad/portugal/

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<a href="https://climate.statizoid.com/compare/wheat-crop-residues-direct-emissions-n2o-per-unit-of-gdp/chad/portugal/">Chad vs Portugal: Wheat — Crop residues (Direct emissions N2O), per unit of GDP</a> — Statizoid

About this data

Indicator: Wheat — Crop residues (Direct emissions N2O), per unit of GDP
Unit: kt per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 112 places, 5,592 data points, 1961–2023
Last refreshed: 15 September 2026

Wheat — Crop residues (Direct emissions N2O) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.