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 All Animals — Amount excreted in manure (N content), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Samoa vs Tonga: All Animals — Amount excreted in manure (N content), per unit of GDP

Samoa

0.0036 kg per US$ of GDP

in 2023

Tonga

0.0039 kg per US$ of GDP

in 2023

Samoa rank

61st

Tonga rank

58th

All Animals — Amount excreted in manure (N content), per unit of GDP over time

Samoa
Tonga

How they compare

Tonga currently reports 0.0039 kg per US$ of GDP against 0.0036 kg per US$ of GDP in Samoa, a difference of 0.0003 kg per US$ of GDP.

That makes Tonga's figure about 1.1 times Samoa's.

The two have swapped places 8 times across 49 shared years of data; in 1975 it was Tonga ahead.

Samoa ranks 61st and Tonga ranks 58th of 169 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	0.0251 kg per US$ of GDP	0.0478 kg per US$ of GDP	0.0227 kg per US$ of GDP	Tonga
1980s	0.0286 kg per US$ of GDP	0.0318 kg per US$ of GDP	0.0032 kg per US$ of GDP	Tonga
1990s	0.0208 kg per US$ of GDP	0.0128 kg per US$ of GDP	0.008 kg per US$ of GDP	Samoa
2000s	0.0108 kg per US$ of GDP	0.0091 kg per US$ of GDP	0.0017 kg per US$ of GDP	Samoa
2010s	0.006 kg per US$ of GDP	0.0051 kg per US$ of GDP	0.0009 kg per US$ of GDP	Samoa
2020s	0.0041 kg per US$ of GDP	0.0043 kg per US$ of GDP	0.0002 kg per US$ of GDP	Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher all animals — amount excreted in manure (n content), per unit of gdp, Samoa or Tonga?: Tonga, at 0.0039 kg per US$ of GDP against 0.0036 kg per US$ of GDP in Samoa as of 2023.
What is the difference in all animals — amount excreted in manure (n content), per unit of gdp between Samoa and Tonga?: 0.0003 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 all animals — amount excreted in manure (n content), per unit of gdp?: Samoa ranks 61st and Tonga ranks 58th of 169 countries.
Where does this data come from?: Statizoid (derived), published as All Animals — Amount excreted in manure (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: All Animals — Amount excreted in manure (N content), per unit of GDP. Statizoid, drawing on Statizoid (derived). Retrieved 11 October 2026, from https://environment.statizoid.com/compare/all-animals-amount-excreted-in-manure-n-content-per-unit-of-gdp/samoa/tonga/

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<a href="https://environment.statizoid.com/compare/all-animals-amount-excreted-in-manure-n-content-per-unit-of-gdp/samoa/tonga/">Samoa vs Tonga: All Animals — Amount excreted in manure (N content), per unit of GDP</a> — Statizoid

About this data

Indicator: All Animals — Amount excreted in manure (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: 171 places, 9,202 data points, 1961–2023
Last refreshed: 06 October 2026

All Animals — Amount excreted in manure (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.