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

41 years are reported by both, from 1981 to 2021.

Where does this data come from?

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

IDA blend vs Tonga: Adjusted net national income (current US$), per unit of GDP

IDA blend

0.7288 current US$ per US$ of GDP

in 2021

Tonga

0.8702 current US$ per US$ of GDP

in 2021

IDA blend rank

37th

Tonga rank

38th

Adjusted net national income (current US$), per unit of GDP over time

IDA blend
Tonga

How they compare

Tonga currently reports 0.8702 current US$ per US$ of GDP against 0.7288 current US$ per US$ of GDP in IDA blend, a difference of 0.1414 current US$ per US$ of GDP.

That makes Tonga's figure about 1.2 times IDA blend's.

Across all 41 years both countries report, Tonga has been ahead every year.

IDA blend ranks 37th and Tonga ranks 38th of 47 groups.

Tonga has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	IDA blend	Tonga	Difference	Ahead
1980s	0.8721 current US$ per US$ of GDP	0.98 current US$ per US$ of GDP	0.1079 current US$ per US$ of GDP	Tonga
1990s	0.625 current US$ per US$ of GDP	0.9497 current US$ per US$ of GDP	0.3247 current US$ per US$ of GDP	Tonga
2000s	0.75 current US$ per US$ of GDP	0.9308 current US$ per US$ of GDP	0.1809 current US$ per US$ of GDP	Tonga
2010s	0.8048 current US$ per US$ of GDP	0.9426 current US$ per US$ of GDP	0.1378 current US$ per US$ of GDP	Tonga
2020s	0.7311 current US$ per US$ of GDP	0.91 current US$ per US$ of GDP	0.1789 current US$ per US$ of GDP	Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher adjusted net national income (current us$), per unit of gdp, IDA blend or Tonga?: Tonga, at 0.8702 current US$ per US$ of GDP against 0.7288 current US$ per US$ of GDP in IDA blend as of 2021.
What is the difference in adjusted net national income (current us$), per unit of gdp between IDA blend and Tonga?: 0.1414 current US$ per US$ of GDP, with Tonga ahead.
How many years of comparable data are there for IDA blend and Tonga?: 41 years are reported by both, from 1981 to 2021.
How do IDA blend and Tonga rank globally for adjusted net national income (current us$), per unit of gdp?: IDA blend ranks 37th and Tonga ranks 38th of 47 groups.
Where does this data come from?: Statizoid (derived), published as Adjusted net national income (current US$), per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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IDA blend vs Tonga: Adjusted net national income (current US$), per unit of GDP. Statizoid, drawing on Statizoid (derived). Retrieved 28 September 2026, from https://economy.statizoid.com/compare/adjusted-net-national-income-current-us-per-unit-of-gdp/ida-blend/tonga/

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About this data

Indicator: Adjusted net national income (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: 231 places, 9,508 data points, 1970–2021
Last refreshed: 26 September 2026

Adjusted net national income (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.