New Caledonia vs Yemen: How have things changed?, per square kilometre

New Caledonia
0.2756 metric tons per square kilometre
in 2023
Yemen
0.2861 metric tons per square kilometre
in 2023
New Caledonia rank
152nd
Yemen rank
149th

How have things changed?, per square kilometre over time

  • New Caledonia
  • Yemen
00.10.20.30.40.5196519942023

How they compare

Yemen currently reports 0.2861 metric tons per square kilometre against 0.2756 metric tons per square kilometre in New Caledonia, a difference of 0.0105 metric tons per square kilometre.

The two have swapped places 13 times across 59 shared years of data; in 1965 it was New Caledonia ahead.

New Caledonia ranks 152nd and Yemen ranks 149th of 215 countries.

Across the 7 decades both report, New Caledonia averaged higher in 2 and Yemen in 5.

Head to head by decade

Decade New Caledonia Yemen Difference Ahead
1960s 0.0372 metric tons per square kilometre 0.0496 metric tons per square kilometre 0.0124 metric tons per square kilometre Yemen
1970s 0.0747 metric tons per square kilometre 0.0944 metric tons per square kilometre 0.0197 metric tons per square kilometre Yemen
1980s 0.2022 metric tons per square kilometre 0.1312 metric tons per square kilometre 0.071 metric tons per square kilometre New Caledonia
1990s 0.2436 metric tons per square kilometre 0.1871 metric tons per square kilometre 0.0564 metric tons per square kilometre New Caledonia
2000s 0.3098 metric tons per square kilometre 0.3564 metric tons per square kilometre 0.0466 metric tons per square kilometre Yemen
2010s 0.2975 metric tons per square kilometre 0.3271 metric tons per square kilometre 0.0296 metric tons per square kilometre Yemen
2020s 0.271 metric tons per square kilometre 0.282 metric tons per square kilometre 0.011 metric tons per square kilometre Yemen

Averages of every year both report within each decade.

Frequently asked questions

Which has higher how have things changed?, per square kilometre, New Caledonia or Yemen?
Yemen, at 0.2861 metric tons per square kilometre against 0.2756 metric tons per square kilometre in New Caledonia as of 2023.
What is the difference in how have things changed?, per square kilometre between New Caledonia and Yemen?
0.0105 metric tons per square kilometre, with Yemen ahead.
How many years of comparable data are there for New Caledonia and Yemen?
59 years are reported by both, from 1965 to 2023.
How do New Caledonia and Yemen rank globally for how have things changed?, per square kilometre?
New Caledonia ranks 152nd and Yemen ranks 149th of 215 countries.
Where does this data come from?
Statizoid (derived), published as How have things changed?, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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New Caledonia vs Yemen: How have things changed?, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 28 September 2026, from https://reference.statizoid.com/compare/how-have-things-changed-per-square-kilometre/new-caledonia/yemen-rep/

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About this data

Indicator
How have things changed?, per square kilometre
Unit
metric tons per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
215 places, 11,549 data points, 1965–2023
Last refreshed

How have things changed? 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.