Japan vs Samoa: Diphtheria - number of reported cases, per square kilometre

Japan
0 units per square kilometre
in 2021
Samoa
0 units per square kilometre
in 2023
Japan rank
57th
Samoa rank
57th

Diphtheria - number of reported cases, per square kilometre over time

  • Japan
  • Samoa
00.0010.0010.002197419982023

How they compare

Japan currently reports 0 units per square kilometre against 0 units per square kilometre in Samoa, a difference of 0 units per square kilometre.

The two have swapped places 5 times across 29 shared years of data; in 1974 it was Japan ahead.

Japan ranks 57th and Samoa ranks 57th of 204 countries.

Across the 6 decades both report, Japan averaged higher in 2 and Samoa in 2.

Head to head by decade

Decade Japan Samoa Difference Ahead
1970s 0.0004 units per square kilometre 0 units per square kilometre 0.0004 units per square kilometre Japan
1980s 0.0001 units per square kilometre 0.0002 units per square kilometre 0.0001 units per square kilometre Samoa
1990s 0 units per square kilometre 0 units per square kilometre 0 units per square kilometre Japan
2000s 0 units per square kilometre 0 units per square kilometre 0 units per square kilometre
2010s 0 units per square kilometre 0.0001 units per square kilometre 0.0001 units per square kilometre Samoa
2020s 0 units per square kilometre 0 units per square kilometre 0 units per square kilometre

Averages of every year both report within each decade.

Frequently asked questions

Which has higher diphtheria - number of reported cases, per square kilometre, Japan or Samoa?
Japan, at 0 units per square kilometre against 0 units per square kilometre in Samoa as of 2021.
What is the difference in diphtheria - number of reported cases, per square kilometre between Japan and Samoa?
0 units per square kilometre, with Japan ahead.
How many years of comparable data are there for Japan and Samoa?
29 years are reported by both, from 1974 to 2020.
How do Japan and Samoa rank globally for diphtheria - number of reported cases, per square kilometre?
Japan ranks 57th and Samoa ranks 57th of 204 countries.
Where does this data come from?
Statizoid (derived), published as Diphtheria - number of reported cases, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs Samoa: Diphtheria - number of reported cases, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 02 September 2026, from https://health.statizoid.com/compare/diphtheria-number-of-reported-cases-per-square-kilometre/japan/samoa/

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About this data

Indicator
Diphtheria - number of reported cases, per square kilometre
Unit
units per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
205 places, 7,917 data points, 1974–2023
Last refreshed

Diphtheria - number of reported cases 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.