Number of one-year-olds who are not vaccinated against diphtheria in Sao Tome and Principe
Sao Tome and Principe: Number of one-year-olds who are not vaccinated against diphtheria was 0 one-year-olds per US$ of GDP in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in Sao Tome and Principe, 1981–2023
Source: Statizoid (derived). Measured in one-year-olds per US$ of GDP.
Analysis
Sao Tome and Principe recorded 0 one-year-olds per US$ of GDP for number of one-year-olds who are not vaccinated against diphtheria in 2023.
The figure is up 30.1% on the previous year and up 72.1% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Sao Tome and Principe peaked at 0 one-year-olds per US$ of GDP in 1983 and was at its lowest, 0 one-year-olds per US$ of GDP, in 2008.
Sao Tome and Principe ranks 55th of 191 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not vaccinated against diphtheria in Sao Tome and Principe, year by year
| Year | one-year-olds per US$ of GDP | Change |
|---|---|---|
| 1981 | 0 one-year-olds per US$ of GDP | — |
| 1982 | 0 one-year-olds per US$ of GDP | +20.0% |
| 1983 | 0 one-year-olds per US$ of GDP | +21.4% |
| 1984 | 0 one-year-olds per US$ of GDP | -32.8% |
| 1985 | 0 one-year-olds per US$ of GDP | -1.8% |
| 1986 | 0 one-year-olds per US$ of GDP | -50.9% |
| 1987 | 0 one-year-olds per US$ of GDP | -18.0% |
| 1988 | 0 one-year-olds per US$ of GDP | -0.9% |
| 1989 | 0 one-year-olds per US$ of GDP | +66.2% |
| 1990 | 0 one-year-olds per US$ of GDP | -81.7% |
| 1991 | 0 one-year-olds per US$ of GDP | +83.4% |
| 1992 | 0 one-year-olds per US$ of GDP | +183.7% |
| 1993 | 0 one-year-olds per US$ of GDP | -4.4% |
| 1994 | 0 one-year-olds per US$ of GDP | -59.3% |
| 1995 | 0 one-year-olds per US$ of GDP | +56.0% |
| 1996 | 0 one-year-olds per US$ of GDP | +16.6% |
| 1997 | 0 one-year-olds per US$ of GDP | +24.1% |
| 1998 | 0 one-year-olds per US$ of GDP | +26.7% |
| 1999 | 0 one-year-olds per US$ of GDP | -24.3% |
| 2000 | 0 one-year-olds per US$ of GDP | -17.5% |
| 2001 | 0 one-year-olds per US$ of GDP | -55.1% |
| 2002 | 0 one-year-olds per US$ of GDP | -2.0% |
| 2003 | 0 one-year-olds per US$ of GDP | -31.6% |
| 2004 | 0 one-year-olds per US$ of GDP | -39.6% |
| 2005 | 0 one-year-olds per US$ of GDP | -36.1% |
| 2006 | 0 one-year-olds per US$ of GDP | -2.7% |
| 2007 | 0 one-year-olds per US$ of GDP | -2.3% |
| 2008 | 0 one-year-olds per US$ of GDP | -73.1% |
| 2009 | 0 one-year-olds per US$ of GDP | +89.3% |
| 2010 | 0 one-year-olds per US$ of GDP | +5.5% |
| 2011 | 0 one-year-olds per US$ of GDP | +65.7% |
| 2012 | 0 one-year-olds per US$ of GDP | -2.7% |
| 2013 | 0 one-year-olds per US$ of GDP | -32.5% |
| 2014 | 0 one-year-olds per US$ of GDP | +59.0% |
| 2015 | 0 one-year-olds per US$ of GDP | -10.7% |
| 2016 | 0 one-year-olds per US$ of GDP | -12.4% |
| 2017 | 0 one-year-olds per US$ of GDP | +11.1% |
| 2018 | 0 one-year-olds per US$ of GDP | -17.9% |
| 2019 | 0 one-year-olds per US$ of GDP | -8.3% |
| 2020 | 0 one-year-olds per US$ of GDP | -28.9% |
| 2021 | 0 one-year-olds per US$ of GDP | -31.6% |
| 2022 | 0 one-year-olds per US$ of GDP | +161.4% |
| 2023 | 0 one-year-olds per US$ of GDP | +30.1% |
Sao Tome and Principe compared with similar countries
- Sao Tome and Principe's 0 one-year-olds per US$ of GDP is below the median for lower middle income countries, which is 0 one-year-olds per US$ of GDP, 68% of the median. (46 countries reporting)
- Sao Tome and Principe's 0 one-year-olds per US$ of GDP is below the median for Sub-Saharan Africa, which is 0 one-year-olds per US$ of GDP, 37% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 9 |
| 1990s | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 10 |
| 2000s | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 10 |
| 2010s | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 10 |
| 2020s | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 0 one-year-olds per US$ of GDP | 4 |
Countries ranked near Sao Tome and Principe
- 52 Cambodia 0 one-year-olds per US$ of GDP compare
- 53 Zimbabwe 0 one-year-olds per US$ of GDP compare
- 54 Senegal 0 one-year-olds per US$ of GDP compare
- 56 Micronesia, Federated States of 0 one-year-olds per US$ of GDP compare
- 57 Viet Nam 0 one-year-olds per US$ of GDP compare
- 58 Namibia 0 one-year-olds per US$ of GDP compare
More health data for Sao Tome and Principe
- Un projection of annual infant deaths, annual growth rate -6.25 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 1.35 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 793.5 deaths per 1,000 people (2090)
- Number of infants who die before age 1 15 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2021)
- Population ages 00-04, female, annual growth rate 1.58 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0651 units per person (2025)
- Population ages 00-04, male, annual growth rate 1.65 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against diphtheria in Sao Tome and Principe?
- Number of one-year-olds who are not vaccinated against diphtheria in Sao Tome and Principe was 0 one-year-olds per US$ of GDP in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in Sao Tome and Principe?
- The highest recorded value was 0 one-year-olds per US$ of GDP in 1983.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Sao Tome and Principe?
- The lowest recorded value was 0 one-year-olds per US$ of GDP in 2008.
- How does Sao Tome and Principe rank for number of one-year-olds who are not vaccinated against diphtheria?
- Sao Tome and Principe ranks 55th out of 191 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Sao Tome and Principe?
- Over the last ten years it is up 72.1%. The long-run trend across the full record is volatile.
- Where does this Sao Tome and Principe data come from?
- The figures come from Statizoid (derived), published as part of Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per unit of GDP. Statizoid updates them automatically from the source API.
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How this figure is calculated
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus ÷ GDP (current US$)
Computed from
- Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data
- GDP Country official statistics, National Statistical Organizations and/or Central Banks
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.