How many years of comparable data are there for Andorra and Chad?

28 years are reported by both, from 1996 to 2023.

Where does this data come from?

Statizoid (derived), published as Annual articles published in scientific and technical journals, per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Andorra vs Chad: Annual articles published in scientific and technical journals, per

Andorra

0 units per US$ of GDP

in 2023

Chad

0 units per US$ of GDP

in 2023

Andorra rank

179th

Chad rank

180th

Annual articles published in scientific and technical journals, per over time

Andorra
Chad

How they compare

Andorra currently reports 0 units per US$ of GDP against 0 units per US$ of GDP in Chad, a difference of 0 units per US$ of GDP.

The two have swapped places 10 times across 28 shared years of data; in 1996 it was Andorra ahead.

Andorra ranks 179th and Chad ranks 180th of 195 countries.

Across the 4 decades both report, Andorra averaged higher in 2 and Chad in 2.

Head to head by decade

Decade	Andorra	Chad	Difference	Ahead
1990s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Chad
2000s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Chad
2010s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Andorra
2020s	0 units per US$ of GDP	0 units per US$ of GDP	0 units per US$ of GDP	Andorra

Averages of every year both report within each decade.

Frequently asked questions

Which has higher annual articles published in scientific and technical journals, per, Andorra or Chad?: Andorra, at 0 units per US$ of GDP against 0 units per US$ of GDP in Chad as of 2023.
What is the difference in annual articles published in scientific and technical journals, per between Andorra and Chad?: 0 units per US$ of GDP, with Andorra ahead.
How many years of comparable data are there for Andorra and Chad?: 28 years are reported by both, from 1996 to 2023.
How do Andorra and Chad rank globally for annual articles published in scientific and technical journals, per?: Andorra ranks 179th and Chad ranks 180th of 195 countries.
Where does this data come from?: Statizoid (derived), published as Annual articles published in scientific and technical journals, per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Andorra vs Chad: Annual articles published in scientific and technical journals, per. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://reference.statizoid.com/compare/annual-articles-published-in-scientific-and-technical-journals-per-unit-of-gdp/andorra/chad/

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About this data

Indicator: Annual articles published in scientific and technical journals, 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: 195 places, 5,413 data points, 1996–2023
Last refreshed: 22 September 2026

Annual articles published in scientific and technical journals divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.