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

27 years are reported by both, from 1993 to 2019.

Where does this data come from?

Statizoid (derived), published as Emission Totals - Emissions (CO2eq) from N2O (AR5) - Farm-gate emissions, per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Estonia vs Tonga: Emission Totals - Emissions (CO2eq) from N2O (AR5) - Farm-gate

Estonia

0 units per US$ of GDP

in 2019

Tonga

0 units per US$ of GDP

in 2019

Estonia rank

95th

Tonga rank

96th

Emission Totals - Emissions (CO2eq) from N2O (AR5) - Farm-gate over time

Estonia
Tonga

How they compare

Estonia currently reports 0 units per US$ of GDP against 0 units per US$ of GDP in Tonga, a difference of 0 units per US$ of GDP.

The two have swapped places 4 times across 27 shared years of data; in 1993 it was Estonia ahead.

Estonia ranks 95th and Tonga ranks 96th of 204 countries.

Estonia has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Estonia	Tonga	Difference	Ahead
1990s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Estonia
2000s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Estonia
2010s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Estonia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher emission totals - emissions (co2eq) from n2o (ar5) - farm-gate, Estonia or Tonga?: Estonia, at 0 units per US$ of GDP against 0 units per US$ of GDP in Tonga as of 2019.
What is the difference in emission totals - emissions (co2eq) from n2o (ar5) - farm-gate between Estonia and Tonga?: 0 units per US$ of GDP, with Estonia ahead.
How many years of comparable data are there for Estonia and Tonga?: 27 years are reported by both, from 1993 to 2019.
How do Estonia and Tonga rank globally for emission totals - emissions (co2eq) from n2o (ar5) - farm-gate?: Estonia ranks 95th and Tonga ranks 96th of 204 countries.
Where does this data come from?: Statizoid (derived), published as Emission Totals - Emissions (CO2eq) from N2O (AR5) - Farm-gate emissions, per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Estonia vs Tonga: Emission Totals - Emissions (CO2eq) from N2O (AR5) - Farm-gate. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://reference.statizoid.com/compare/emission-totals-emissions-co2eq-from-n2o-ar5-farm-gate-emissions-per-unit-of-gdp/estonia/tonga/

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<a href="https://reference.statizoid.com/compare/emission-totals-emissions-co2eq-from-n2o-ar5-farm-gate-emissions-per-unit-of-gdp/estonia/tonga/">Estonia vs Tonga: Emission Totals - Emissions (CO2eq) from N2O (AR5) - Farm-gate</a> — Statizoid

About this data

Indicator: Emission Totals - Emissions (CO2eq) from N2O (AR5) - Farm-gate emissions, per unit of GDP
Unit: units per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 205 places, 5,884 data points, 1990–2019
Last refreshed: 18 September 2026

Emission Totals - Emissions (CO2eq) from N2O (AR5) - Farm-gate emissions divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.