How many years of comparable data are there for Samoa and Tonga?

49 years are reported by both, from 1975 to 2023.

Where does this data come from?

Statizoid (derived), published as Poultry Birds — Manure left on pasture that volatilises (N content), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Samoa vs Tonga: Poultry Birds: Manure left on pasture … left unit GDP volatilises

Samoa

0 kg per US$ of GDP

in 2023

Tonga

0 kg per US$ of GDP

in 2023

Samoa rank

123rd

Tonga rank

121st

Poultry Birds: Manure left on pasture … left unit GDP volatilises over time

Samoa
Tonga

How they compare

Tonga currently reports 0 kg per US$ of GDP against 0 kg per US$ of GDP in Samoa, a difference of 0 kg per US$ of GDP.

That makes Tonga's figure about 1.5 times Samoa's.

The two have swapped places 9 times across 49 shared years of data; in 1975 it was Samoa ahead.

Samoa ranks 123rd and Tonga ranks 121st of 167 countries.

Across the 6 decades both report, Samoa averaged higher in 3 and Tonga in 3.

Head to head by decade

Decade	Samoa	Tonga	Difference	Ahead
1970s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Samoa
1980s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Samoa
1990s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Samoa
2000s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Tonga
2010s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Tonga
2020s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher poultry birds — manure left on pasture that volatilises (n content), Samoa or Tonga?: Tonga, at 0 kg per US$ of GDP against 0 kg per US$ of GDP in Samoa as of 2023.
What is the difference in poultry birds — manure left on pasture that volatilises (n content) between Samoa and Tonga?: 0 kg per US$ of GDP, with Tonga ahead.
How many years of comparable data are there for Samoa and Tonga?: 49 years are reported by both, from 1975 to 2023.
How do Samoa and Tonga rank globally for poultry birds — manure left on pasture that volatilises (n content)?: Samoa ranks 123rd and Tonga ranks 121st of 167 countries.
Where does this data come from?: Statizoid (derived), published as Poultry Birds — Manure left on pasture that volatilises (N content), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Samoa vs Tonga: Poultry Birds — Manure left on pasture that volatilises (N content). Statizoid, drawing on Statizoid (derived). Retrieved 11 October 2026, from https://environment.statizoid.com/compare/poultry-birds-manure-left-on-pasture-that-volatilises-n-content-per-unit-of-gdp/samoa/tonga/

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<a href="https://environment.statizoid.com/compare/poultry-birds-manure-left-on-pasture-that-volatilises-n-content-per-unit-of-gdp/samoa/tonga/">Samoa vs Tonga: Poultry Birds — Manure left on pasture that volatilises (N content)</a> — Statizoid

About this data

Indicator: Poultry Birds — Manure left on pasture that volatilises (N content), per unit of GDP
Unit: kg per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 169 places, 9,054 data points, 1961–2023
Last refreshed: 02 October 2026

Poultry Birds — Manure left on pasture that volatilises (N content) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.