How many years of comparable data are there for Tunisia and Zambia?

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

Where does this data come from?

Statizoid (derived), published as Chickens, layers — 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.

Tunisia vs Zambia: Chickens, layers: Manure left on pasture … left unit GDP volatilises

Tunisia

0 kg per US$ of GDP

in 2023

Zambia

0 kg per US$ of GDP

in 2023

Tunisia rank

4th

Zambia rank

6th

Chickens, layers: Manure left on pasture … left unit GDP volatilises over time

Tunisia
Zambia

How they compare

Tunisia currently reports 0 kg per US$ of GDP against 0 kg per US$ of GDP in Zambia, a difference of 0 kg per US$ of GDP.

That makes Tunisia's figure about 1.3 times Zambia's.

The two have swapped places 4 times across 63 shared years of data; in 1961 it was Tunisia ahead.

Tunisia ranks 4th and Zambia ranks 6th of 167 countries.

Across the 7 decades both report, Tunisia averaged higher in 3 and Zambia in 4.

Head to head by decade

Decade	Tunisia	Zambia	Difference	Ahead
1960s	0.0003 kg per US$ of GDP	0.0002 kg per US$ of GDP	0.0001 kg per US$ of GDP	Tunisia
1970s	0.0002 kg per US$ of GDP	0.0002 kg per US$ of GDP	0 kg per US$ of GDP	Zambia
1980s	0.0001 kg per US$ of GDP	0.0002 kg per US$ of GDP	0 kg per US$ of GDP	Zambia
1990s	0.0001 kg per US$ of GDP	0.0002 kg per US$ of GDP	0.0001 kg per US$ of GDP	Zambia
2000s	0.0001 kg per US$ of GDP	0.0001 kg per US$ of GDP	0.0001 kg per US$ of GDP	Zambia
2010s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Tunisia
2020s	0.0001 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Tunisia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher chickens, layers — manure left on pasture that volatilises (n), Tunisia or Zambia?: Tunisia, at 0 kg per US$ of GDP against 0 kg per US$ of GDP in Zambia as of 2023.
What is the difference in chickens, layers — manure left on pasture that volatilises (n) between Tunisia and Zambia?: 0 kg per US$ of GDP, with Tunisia ahead.
How many years of comparable data are there for Tunisia and Zambia?: 63 years are reported by both, from 1961 to 2023.
How do Tunisia and Zambia rank globally for chickens, layers — manure left on pasture that volatilises (n)?: Tunisia ranks 4th and Zambia ranks 6th of 167 countries.
Where does this data come from?: Statizoid (derived), published as Chickens, layers — 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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Tunisia vs Zambia: Chickens, layers — Manure left on pasture that volatilises (N). Statizoid, drawing on Statizoid (derived). Retrieved 11 October 2026, from https://environment.statizoid.com/compare/chickens-layers-manure-left-on-pasture-that-volatilises-n-content-per-unit-of-gdp/tunisia/zambia/

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<a href="https://environment.statizoid.com/compare/chickens-layers-manure-left-on-pasture-that-volatilises-n-content-per-unit-of-gdp/tunisia/zambia/">Tunisia vs Zambia: Chickens, layers — Manure left on pasture that volatilises (N)</a> — Statizoid

About this data

Indicator: Chickens, layers — 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, 9,049 data points, 1961–2023
Last refreshed: 10 October 2026

Chickens, layers — 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.