How many years of comparable data are there for Grenada and Iran, Islamic Republic of?

52 years are reported by both, from 1974 to 2025.

Where does this data come from?

Statizoid (derived), published as Diphtheria - number of reported cases, gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Grenada vs Iran, Islamic Republic of: Diphtheria - number of reported cases, gaps filled

Grenada

in 2025

Iran, Islamic Republic of

in 2025

Grenada rank

60th

Iran, Islamic Republic of rank

60th

Diphtheria - number of reported cases, gaps filled over time

Grenada
Iran, Islamic Republic of

How they compare

Grenada currently reports 0 against 0 in Iran, Islamic Republic of, a difference of 0.

Across all 52 years both countries report, Iran, Islamic Republic of has been ahead every year.

Grenada ranks 60th and Iran, Islamic Republic of ranks 60th of 210 countries.

Iran, Islamic Republic of has averaged higher in every one of the 6 decades both report.

Head to head by decade

Decade	Grenada	Iran, Islamic Republic of	Difference	Ahead
1970s	0.3333	1,016	1,016	Iran, Islamic Republic of
1980s	0.2	243.2	243	Iran, Islamic Republic of
1990s	0	92.2	92.2	Iran, Islamic Republic of
2000s	0	25.6	25.6	Iran, Islamic Republic of
2010s	0	63.1	63.1	Iran, Islamic Republic of
2020s	0	0	0	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher diphtheria - number of reported cases, gaps filled, Grenada or Iran, Islamic Republic of?: Grenada, at 0 against 0 in Iran, Islamic Republic of as of 2025.
What is the difference in diphtheria - number of reported cases, gaps filled between Grenada and Iran, Islamic Republic of?: 0, with Grenada ahead.
How many years of comparable data are there for Grenada and Iran, Islamic Republic of?: 52 years are reported by both, from 1974 to 2025.
How do Grenada and Iran, Islamic Republic of rank globally for diphtheria - number of reported cases, gaps filled?: Grenada ranks 60th and Iran, Islamic Republic of ranks 60th of 210 countries.
Where does this data come from?: Statizoid (derived), published as Diphtheria - number of reported cases, gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Grenada vs Iran, Islamic Republic of: Diphtheria - number of reported cases, gaps filled. Statizoid, drawing on Statizoid (derived). Retrieved 31 August 2026, from https://health.statizoid.com/compare/diphtheria-number-of-reported-cases-gaps-filled/grenada/iran-islamic-rep/

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About this data

Indicator: Diphtheria - number of reported cases, gaps filled
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 222 places, 9,846 data points, 1974–2025
Last refreshed: 31 August 2026

Diphtheria - number of reported cases with 613 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.