How many years of comparable data are there for Angola 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 square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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

Angola

0 units per square kilometre

in 2023

Chad

0 units per square kilometre

in 2023

Angola rank

195th

Chad rank

193rd

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

Angola
Chad

How they compare

Chad currently reports 0 units per square kilometre against 0 units per square kilometre in Angola, a difference of 0 units per square kilometre.

The two have swapped places 3 times across 28 shared years of data; in 1996 it was Angola ahead.

Angola ranks 195th and Chad ranks 193rd of 196 countries.

Angola has averaged higher in every one of the 4 decades both report.

Head to head by decade

Decade	Angola	Chad	Difference	Ahead
1990s	0 units per square kilometre	0 units per square kilometre	0 units per square kilometre	Angola
2000s	0 units per square kilometre	0 units per square kilometre	0 units per square kilometre	Angola
2010s	0 units per square kilometre	0 units per square kilometre	0 units per square kilometre	Angola
2020s	0 units per square kilometre	0 units per square kilometre	0 units per square kilometre	Angola

Averages of every year both report within each decade.

Frequently asked questions

Which has higher annual articles published in scientific and technical journals, per, Angola or Chad?: Chad, at 0 units per square kilometre against 0 units per square kilometre in Angola as of 2023.
What is the difference in annual articles published in scientific and technical journals, per between Angola and Chad?: 0 units per square kilometre, with Chad ahead.
How many years of comparable data are there for Angola and Chad?: 28 years are reported by both, from 1996 to 2023.
How do Angola and Chad rank globally for annual articles published in scientific and technical journals, per?: Angola ranks 195th and Chad ranks 193rd of 196 countries.
Where does this data come from?: Statizoid (derived), published as Annual articles published in scientific and technical journals, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Angola 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-square-kilometre/angola/chad/

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<a href="https://reference.statizoid.com/compare/annual-articles-published-in-scientific-and-technical-journals-per-square-kilometre/angola/chad/">Angola vs Chad: Annual articles published in scientific and technical journals, per</a> — Statizoid

About this data

Indicator: Annual articles published in scientific and technical journals, per square kilometre
Unit: units per square kilometre
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 196 places, 5,428 data points, 1996–2023
Last refreshed: 22 September 2026

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