Number of one-year-olds who are not vaccinated against diphtheria in Singapore
Singapore: Number of one-year-olds who are not vaccinated against diphtheria was -32.97 % change on previous year in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in Singapore, 1981–2023
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
In 2023, number of one-year-olds who are not vaccinated against diphtheria in Singapore stood at -32.97 % change on previous year.
The figure is down 168.0% on the previous year and down 1,073.1% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Singapore peaked at 156.63 % change on previous year in 1988 and was at its lowest, -59.84 % change on previous year, in 1995.
Singapore ranks 175th of 194 countries on this measure, in the bottom quarter.
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 Singapore, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1981 | -16.19 % change on previous year | — |
| 1982 | 38.78 % change on previous year | -339.5% |
| 1983 | -2.61 % change on previous year | -106.7% |
| 1984 | 43.21 % change on previous year | -1754.6% |
| 1985 | -5.46 % change on previous year | -112.6% |
| 1986 | -59.09 % change on previous year | +982.4% |
| 1987 | -56.1 % change on previous year | -5.1% |
| 1988 | 156.63 % change on previous year | -379.2% |
| 1989 | 11.81 % change on previous year | -92.5% |
| 1990 | 61.52 % change on previous year | +421.2% |
| 1991 | -39.58 % change on previous year | -164.3% |
| 1992 | 23.5 % change on previous year | -159.4% |
| 1993 | -26.93 % change on previous year | -214.6% |
| 1994 | -37.42 % change on previous year | +39.0% |
| 1995 | -59.84 % change on previous year | +59.9% |
| 1996 | 48.18 % change on previous year | -180.5% |
| 1997 | -34.38 % change on previous year | -171.4% |
| 1998 | 48.02 % change on previous year | -239.6% |
| 1999 | -2.88 % change on previous year | -106.0% |
| 2000 | -35.88 % change on previous year | +1146.5% |
| 2001 | 99.87 % change on previous year | -378.3% |
| 2002 | 49.07 % change on previous year | -50.9% |
| 2003 | -36.77 % change on previous year | -174.9% |
| 2004 | 19.4 % change on previous year | -152.8% |
| 2005 | -21.41 % change on previous year | -210.4% |
| 2006 | 26.13 % change on previous year | -222.0% |
| 2007 | -38.75 % change on previous year | -248.3% |
| 2008 | 2.94 % change on previous year | -107.6% |
| 2009 | 2.1 % change on previous year | -28.7% |
| 2010 | 31.07 % change on previous year | +1380.8% |
| 2011 | -2.26 % change on previous year | -107.3% |
| 2012 | -24.48 % change on previous year | +981.6% |
| 2013 | 3.39 % change on previous year | -113.8% |
| 2014 | 36.87 % change on previous year | +988.4% |
| 2015 | 1.19 % change on previous year | -96.8% |
| 2016 | -23.53 % change on previous year | -2072.6% |
| 2017 | 34.02 % change on previous year | -244.6% |
| 2018 | -26.42 % change on previous year | -177.7% |
| 2019 | -1.62 % change on previous year | -93.9% |
| 2020 | -33.97 % change on previous year | +1995.4% |
| 2021 | -1.5 % change on previous year | -95.6% |
| 2022 | 48.48 % change on previous year | -3337.6% |
| 2023 | -32.97 % change on previous year | -168.0% |
Singapore compared with similar countries
- Singapore's -32.97 % change on previous year is below the median for high income countries, which is -0.4453 % change on previous year, 74.0× the median. (63 countries reporting)
- Singapore's -32.97 % change on previous year is below the median for East Asia & Pacific, which is -0.6561 % change on previous year, 50.2× the median. (30 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in Singapore changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2022 | +3337.6% | -1.5 % change on previous year | 48.48 % change on previous year |
| 2016 | -2072.6% | 1.19 % change on previous year | -23.53 % change on previous year |
| 2020 | -1995.4% | -1.62 % change on previous year | -33.97 % change on previous year |
| 1984 | +1754.6% | -2.61 % change on previous year | 43.21 % change on previous year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 12.33 % change on previous year | -59.09 % change on previous year | 156.63 % change on previous year | 9 |
| 1990s | -1.98 % change on previous year | -59.84 % change on previous year | 61.52 % change on previous year | 10 |
| 2000s | 6.67 % change on previous year | -38.75 % change on previous year | 99.87 % change on previous year | 10 |
| 2010s | 2.82 % change on previous year | -26.42 % change on previous year | 36.87 % change on previous year | 10 |
| 2020s | -4.99 % change on previous year | -33.97 % change on previous year | 48.48 % change on previous year | 4 |
Countries ranked near Singapore
- 172 Micronesia (country) -32.23 % change on previous year compare
- 173 Tuvalu -32.41 % change on previous year compare
- 174 Philippines -32.74 % change on previous year compare
- 176 Malawi -34.79 % change on previous year compare
- 177 Guatemala -37.31 % change on previous year compare
- 178 Grenada -40.08 % change on previous year compare
More health data for Singapore
- Un projection of annual infant deaths, annual growth rate 0 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.5225 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,924 deaths per 1,000 people (2090)
- Number of infants who die before age 1 13 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2024)
- Population ages 00-04, female, annual growth rate 1.93 % 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 0.0196 units per person (2025)
- Population ages 00-04, male, annual growth rate 2.52 % 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 Singapore?
- Number of one-year-olds who are not vaccinated against diphtheria in Singapore was -32.97 % change on previous year in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in Singapore?
- The highest recorded value was 156.63 % change on previous year in 1988.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Singapore?
- The lowest recorded value was -59.84 % change on previous year in 1995.
- How does Singapore rank for number of one-year-olds who are not vaccinated against diphtheria?
- Singapore ranks 175th out of 194 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Singapore?
- Over the last ten years it is down 1,073.1%. The long-run trend across the full record is volatile.
- Where does this Singapore 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, annual growth rate. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 43 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
The year-on-year percentage change in Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
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
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
The year-on-year percentage change in Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.