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

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

Where does this data come from?

Statizoid (derived), published as Nutrient nitrogen N (total) — Synthetic fertilizers (Direct emissions N2O), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Oman vs Tonga: Nutrient nitrogen N (total) — Synthetic fertilizers (Direct emissions)

Oman

0 kt per US$ of GDP

in 2023

Tonga

0 kt per US$ of GDP

in 2023

Oman rank

132nd

Tonga rank

131st

Nutrient nitrogen N (total) — Synthetic fertilizers (Direct emissions) over time

Oman
Tonga

How they compare

Tonga currently reports 0 kt per US$ of GDP against 0 kt per US$ of GDP in Oman, a difference of 0 kt per US$ of GDP.

The two have swapped places 7 times across 49 shared years of data; in 1975 it was Oman ahead.

Oman ranks 132nd and Tonga ranks 131st of 175 countries.

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

Head to head by decade

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

Averages of every year both report within each decade.

Frequently asked questions

Which has higher nutrient nitrogen n (total) — synthetic fertilizers (direct emissions), Oman or Tonga?: Tonga, at 0 kt per US$ of GDP against 0 kt per US$ of GDP in Oman as of 2023.
What is the difference in nutrient nitrogen n (total) — synthetic fertilizers (direct emissions) between Oman and Tonga?: 0 kt per US$ of GDP, with Tonga ahead.
How many years of comparable data are there for Oman and Tonga?: 49 years are reported by both, from 1975 to 2023.
How do Oman and Tonga rank globally for nutrient nitrogen n (total) — synthetic fertilizers (direct emissions)?: Oman ranks 132nd and Tonga ranks 131st of 175 countries.
Where does this data come from?: Statizoid (derived), published as Nutrient nitrogen N (total) — Synthetic fertilizers (Direct emissions N2O), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Oman vs Tonga: Nutrient nitrogen N (total) — Synthetic fertilizers (Direct emissions). Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://climate.statizoid.com/compare/nutrient-nitrogen-n-total-synthetic-fertilizers-direct-emissions-n2o-per-unit-of-gdp/oman/tonga/

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About this data

Indicator: Nutrient nitrogen N (total) — Synthetic fertilizers (Direct emissions N2O), per unit of GDP
Unit: kt per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 177 places, 9,212 data points, 1961–2023
Last refreshed: 07 September 2026

Nutrient nitrogen N (total) — Synthetic fertilizers (Direct emissions N2O) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.