What is the difference in gni (current us$), per unit of gdp between Sao Tome and Principe and Tonga?

0.02 current US$ per US$ of GDP, with Sao Tome and Principe ahead.

How many years of comparable data are there for Sao Tome and Principe and Tonga?

45 years are reported by both, from 1981 to 2025.

Where does this data come from?

Statizoid (derived), published as GNI (current US$), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Sao Tome and Principe vs Tonga: GNI (current US$), per unit of GDP

Sao Tome and Principe

1.08 current US$ per US$ of GDP

in 2025

Tonga

1.06 current US$ per US$ of GDP

in 2025

Sao Tome and Principe rank

14th

Tonga rank

16th

GNI (current US$), per unit of GDP over time

Sao Tome and Principe
Tonga

How they compare

Sao Tome and Principe currently reports 1.08 current US$ per US$ of GDP against 1.06 current US$ per US$ of GDP in Tonga, a difference of 0.02 current US$ per US$ of GDP.

The two have swapped places 7 times across 45 shared years of data; in 1981 it was Tonga ahead.

Sao Tome and Principe ranks 14th and Tonga ranks 16th of 207 countries.

Across the 5 decades both report, Sao Tome and Principe averaged higher in 1 and Tonga in 4.

Head to head by decade

Decade	Sao Tome and Principe	Tonga	Difference	Ahead
1980s	0.9677 current US$ per US$ of GDP	1.05 current US$ per US$ of GDP	0.0787 current US$ per US$ of GDP	Tonga
1990s	0.8964 current US$ per US$ of GDP	1.02 current US$ per US$ of GDP	0.1281 current US$ per US$ of GDP	Tonga
2000s	0.9813 current US$ per US$ of GDP	1.01 current US$ per US$ of GDP	0.0315 current US$ per US$ of GDP	Tonga
2010s	1.01 current US$ per US$ of GDP	1.03 current US$ per US$ of GDP	0.0245 current US$ per US$ of GDP	Tonga
2020s	1.07 current US$ per US$ of GDP	1.06 current US$ per US$ of GDP	0.002 current US$ per US$ of GDP	Sao Tome and Principe

Averages of every year both report within each decade.

Frequently asked questions

Which has higher gni (current us$), per unit of gdp, Sao Tome and Principe or Tonga?: Sao Tome and Principe, at 1.08 current US$ per US$ of GDP against 1.06 current US$ per US$ of GDP in Tonga as of 2025.
What is the difference in gni (current us$), per unit of gdp between Sao Tome and Principe and Tonga?: 0.02 current US$ per US$ of GDP, with Sao Tome and Principe ahead.
How many years of comparable data are there for Sao Tome and Principe and Tonga?: 45 years are reported by both, from 1981 to 2025.
How do Sao Tome and Principe and Tonga rank globally for gni (current us$), per unit of gdp?: Sao Tome and Principe ranks 14th and Tonga ranks 16th of 207 countries.
Where does this data come from?: Statizoid (derived), published as GNI (current US$), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sao Tome and Principe vs Tonga: GNI (current US$), per unit of GDP. Statizoid, drawing on Statizoid (derived). Retrieved 07 September 2026, from https://economy.statizoid.com/compare/gni-current-us-per-unit-of-gdp/sao-tome-and-principe/tonga/

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About this data

Indicator: GNI (current US$), per unit of GDP
Unit: current US$ per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 255 places, 13,841 data points, 1960–2025
Last refreshed: 24 August 2026

GNI (current US$) divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.