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

41 years are reported by both, from 1980 to 2020.

Where does this data come from?

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

Bulgaria vs Zambia: Poultry Birds — Manure applied to soils that volatilises (N content)

Bulgaria

0 kg per US$ of GDP

in 2020

Zambia

0 kg per US$ of GDP

in 2023

Bulgaria rank

54th

Zambia rank

56th

Poultry Birds — Manure applied to soils that volatilises (N content) over time

Bulgaria
Zambia

How they compare

Bulgaria 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 Bulgaria's figure about 1.1 times Zambia's.

The two have swapped places 7 times across 41 shared years of data; in 1980 it was Bulgaria ahead.

Bulgaria ranks 54th and Zambia ranks 56th of 167 countries.

Across the 5 decades both report, Bulgaria averaged higher in 4 and Zambia in 1.

Head to head by decade

Decade	Bulgaria	Zambia	Difference	Ahead
1980s	0.0002 kg per US$ of GDP	0.0001 kg per US$ of GDP	0.0001 kg per US$ of GDP	Bulgaria
1990s	0.0002 kg per US$ of GDP	0.0001 kg per US$ of GDP	0.0001 kg per US$ of GDP	Bulgaria
2000s	0.0001 kg per US$ of GDP	0.0001 kg per US$ of GDP	0 kg per US$ of GDP	Bulgaria
2010s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Bulgaria
2020s	0 kg per US$ of GDP	0 kg per US$ of GDP	0 kg per US$ of GDP	Zambia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher poultry birds — manure applied to soils that volatilises (n content), Bulgaria or Zambia?: Bulgaria, at 0 kg per US$ of GDP against 0 kg per US$ of GDP in Zambia as of 2020.
What is the difference in poultry birds — manure applied to soils that volatilises (n content) between Bulgaria and Zambia?: 0 kg per US$ of GDP, with Bulgaria ahead.
How many years of comparable data are there for Bulgaria and Zambia?: 41 years are reported by both, from 1980 to 2020.
How do Bulgaria and Zambia rank globally for poultry birds — manure applied to soils that volatilises (n content)?: Bulgaria ranks 54th and Zambia ranks 56th of 167 countries.
Where does this data come from?: Statizoid (derived), published as Poultry Birds — Manure applied to soils 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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Bulgaria vs Zambia: Poultry Birds — Manure applied to soils that volatilises (N content). Statizoid, drawing on Statizoid (derived). Retrieved 02 October 2026, from https://environment.statizoid.com/compare/poultry-birds-manure-applied-to-soils-that-volatilises-n-content-per-unit-of-gdp/bulgaria/zambia/

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<a href="https://environment.statizoid.com/compare/poultry-birds-manure-applied-to-soils-that-volatilises-n-content-per-unit-of-gdp/bulgaria/zambia/">Bulgaria vs Zambia: Poultry Birds — Manure applied to soils that volatilises (N content)</a> — Statizoid

About this data

Indicator: Poultry Birds — Manure applied to soils 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: 01 October 2026

Poultry Birds — Manure applied to soils 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.