Singapore vs Yemen: Number of one-year-olds who are not vaccinated against diphtheria

Singapore
1.26 one-year-olds per square kilometre
in 2023
Yemen
1.32 one-year-olds per square kilometre
in 2023
Singapore rank
10th
Yemen rank
9th

Number of one-year-olds who are not vaccinated against diphtheria over time

  • Singapore
  • Yemen
051015198020012023

How they compare

Yemen currently reports 1.32 one-year-olds per square kilometre against 1.26 one-year-olds per square kilometre in Singapore, a difference of 0.06 one-year-olds per square kilometre.

The two have swapped places 1 time across 44 shared years of data; in 1980 it was Singapore ahead.

Singapore ranks 10th and Yemen ranks 9th of 192 countries.

Singapore has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade Singapore Yemen Difference Ahead
1980s 8.75 one-year-olds per square kilometre 0.7871 one-year-olds per square kilometre 7.97 one-year-olds per square kilometre Singapore
1990s 4.73 one-year-olds per square kilometre 0.5907 one-year-olds per square kilometre 4.14 one-year-olds per square kilometre Singapore
2000s 2.53 one-year-olds per square kilometre 0.3952 one-year-olds per square kilometre 2.14 one-year-olds per square kilometre Singapore
2010s 2.28 one-year-olds per square kilometre 0.6743 one-year-olds per square kilometre 1.61 one-year-olds per square kilometre Singapore
2020s 1.42 one-year-olds per square kilometre 1.08 one-year-olds per square kilometre 0.3435 one-year-olds per square kilometre Singapore

Averages of every year both report within each decade.

Frequently asked questions

Which has higher number of one-year-olds who are not vaccinated against diphtheria, Singapore or Yemen?
Yemen, at 1.32 one-year-olds per square kilometre against 1.26 one-year-olds per square kilometre in Singapore as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Singapore and Yemen?
0.06 one-year-olds per square kilometre, with Yemen ahead.
How many years of comparable data are there for Singapore and Yemen?
44 years are reported by both, from 1980 to 2023.
How do Singapore and Yemen rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Singapore ranks 10th and Yemen ranks 9th of 192 countries.
Where does this data come from?
Statizoid (derived), published as Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

Share, cite or embed this page

Cite this page

Singapore vs Yemen: Number of one-year-olds who are not vaccinated against diphtheria. Statizoid, drawing on Statizoid (derived). Retrieved 18 September 2026, from https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/singapore/yemen-rep/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under Derived by Statizoid from the sources named on the page; please keep the attribution.

<a href="https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/singapore/yemen-rep/">Singapore vs Yemen: Number of one-year-olds who are not vaccinated against diphtheria</a> — Statizoid

About this data

Indicator
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per square kilometre
Unit
one-year-olds per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
192 places, 7,710 data points, 1980–2023
Last refreshed

Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus 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.