San Marino vs Tonga: Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus
San Marino
19.89 one-year-olds
in 2023
Tonga
23.98 one-year-olds
in 2023
San Marino rank
188th
Tonga rank
186th
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus over time
- San Marino
- Tonga
How they compare
Tonga currently reports 23.98 one-year-olds against 19.89 one-year-olds in San Marino, a difference of 4.09 one-year-olds.
That makes Tonga's figure about 1.2 times San Marino's.
The two have swapped places 6 times across 41 shared years of data; in 1983 it was Tonga ahead.
San Marino ranks 188th and Tonga ranks 186th of 194 countries.
Tonga has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | San Marino | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 2.31 one-year-olds | 583.92 one-year-olds | 581.61 one-year-olds | Tonga |
| 1990s | 5.44 one-year-olds | 152 one-year-olds | 146.56 one-year-olds | Tonga |
| 2000s | 17.93 one-year-olds | 83.9 one-year-olds | 65.97 one-year-olds | Tonga |
| 2010s | 37.36 one-year-olds | 57.69 one-year-olds | 20.32 one-year-olds | Tonga |
| 2020s | 22.35 one-year-olds | 23.81 one-year-olds | 1.46 one-year-olds | Tonga |
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, pertussis and tetanus, San Marino or Tonga?
- Tonga, at 23.98 one-year-olds against 19.89 one-year-olds in San Marino as of 2023.
- What is the difference in number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus between San Marino and Tonga?
- 4.09 one-year-olds, with Tonga ahead.
- How many years of comparable data are there for San Marino and Tonga?
- 41 years are reported by both, from 1983 to 2023.
- How do San Marino and Tonga rank globally for number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus?
- San Marino ranks 188th and Tonga ranks 186th of 194 countries.
- Where does this data come from?
- WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Number of one-year-olds who have not had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.