Number of one-year-olds who are not vaccinated against diphtheria in Seychelles
Seychelles: 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 Seychelles, 1981–2023
Source: Statizoid (derived). Measured in one-year-olds per US$ of GDP.
Analysis
In 2023, number of one-year-olds who are not vaccinated against diphtheria in Seychelles stood at 0 one-year-olds per US$ of GDP.
The figure is down 7.3% on the previous year and up 3.1% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Seychelles peaked at 0 one-year-olds per US$ of GDP in 1981 and was at its lowest, 0 one-year-olds per US$ of GDP, in 2019.
That places Seychelles 134th out of 191 countries with data for 2023, putting it 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 Seychelles, 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 | -45.4% |
| 1983 | 0 one-year-olds per US$ of GDP | -93.2% |
| 1984 | 0 one-year-olds per US$ of GDP | +62.4% |
| 1985 | 0 one-year-olds per US$ of GDP | +152.9% |
| 1986 | 0 one-year-olds per US$ of GDP | -64.8% |
| 1987 | 0 one-year-olds per US$ of GDP | +53.6% |
| 1988 | 0 one-year-olds per US$ of GDP | -52.3% |
| 1989 | 0 one-year-olds per US$ of GDP | -53.5% |
| 1990 | 0 one-year-olds per US$ of GDP | -72.6% |
| 1991 | 0 one-year-olds per US$ of GDP | +95.2% |
| 1992 | 0 one-year-olds per US$ of GDP | +71.4% |
| 1993 | 0 one-year-olds per US$ of GDP | -9.5% |
| 1994 | 0 one-year-olds per US$ of GDP | -1.2% |
| 1995 | 0 one-year-olds per US$ of GDP | -26.3% |
| 1996 | 0 one-year-olds per US$ of GDP | -67.3% |
| 1997 | 0 one-year-olds per US$ of GDP | +68.1% |
| 1998 | 0 one-year-olds per US$ of GDP | -55.3% |
| 1999 | 0 one-year-olds per US$ of GDP | -2.9% |
| 2000 | 0 one-year-olds per US$ of GDP | +102.6% |
| 2001 | 0 one-year-olds per US$ of GDP | +95.7% |
| 2002 | 0 one-year-olds per US$ of GDP | -77.8% |
| 2003 | 0 one-year-olds per US$ of GDP | -1.3% |
| 2004 | 0 one-year-olds per US$ of GDP | -15.6% |
| 2005 | 0 one-year-olds per US$ of GDP | -8.2% |
| 2006 | 0 one-year-olds per US$ of GDP | -9.3% |
| 2007 | 0 one-year-olds per US$ of GDP | +0.5% |
| 2008 | 0 one-year-olds per US$ of GDP | +9.7% |
| 2009 | 0 one-year-olds per US$ of GDP | +15.0% |
| 2010 | 0 one-year-olds per US$ of GDP | -11.8% |
| 2011 | 0 one-year-olds per US$ of GDP | -4.0% |
| 2012 | 0 one-year-olds per US$ of GDP | +100.9% |
| 2013 | 0 one-year-olds per US$ of GDP | -16.5% |
| 2014 | 0 one-year-olds per US$ of GDP | -51.4% |
| 2015 | 0 one-year-olds per US$ of GDP | +193.5% |
| 2016 | 0 one-year-olds per US$ of GDP | +22.9% |
| 2017 | 0 one-year-olds per US$ of GDP | -28.8% |
| 2018 | 0 one-year-olds per US$ of GDP | -68.2% |
| 2019 | 0 one-year-olds per US$ of GDP | -3.8% |
| 2020 | 0 one-year-olds per US$ of GDP | +306.4% |
| 2021 | 0 one-year-olds per US$ of GDP | +86.6% |
| 2022 | 0 one-year-olds per US$ of GDP | -61.6% |
| 2023 | 0 one-year-olds per US$ of GDP | -7.3% |
Seychelles compared with similar countries
- Seychelles's 0 one-year-olds per US$ of GDP is above the median for high income countries, which is 0 one-year-olds per US$ of GDP, 1.9× the median. (63 countries reporting)
- Seychelles'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, 1% 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 Seychelles
- 131 New Zealand 0 one-year-olds per US$ of GDP compare
- 132 Trinidad and Tobago 0 one-year-olds per US$ of GDP compare
- 133 Iran 0 one-year-olds per US$ of GDP compare
- 135 Chile 0 one-year-olds per US$ of GDP compare
- 136 China 0 one-year-olds per US$ of GDP compare
- 137 Austria 0 one-year-olds per US$ of GDP compare
More health data for Seychelles
- Un projection of annual infant deaths, annual growth rate 0 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate -1.17 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,333 deaths per 1,000 people (2090)
- Number of infants who die before age 1 3 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate -0.0987 % 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 0.033 units per person (2025)
- Population ages 00-04, male, annual growth rate -0.2838 % 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 Seychelles?
- Number of one-year-olds who are not vaccinated against diphtheria in Seychelles 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 Seychelles?
- The highest recorded value was 0 one-year-olds per US$ of GDP in 1981.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Seychelles?
- The lowest recorded value was 0 one-year-olds per US$ of GDP in 2019.
- How does Seychelles rank for number of one-year-olds who are not vaccinated against diphtheria?
- Seychelles ranks 134th out of 191 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Seychelles?
- Over the last ten years it is up 3.1%. The long-run trend across the full record is volatile.
- Where does this Seychelles 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.