Polio number unvaccinated in Tonga
Tonga: Polio number unvaccinated was 23.98 in 2023. ◆ Volatile
Polio number unvaccinated in Tonga, 1980–2023
Source: Our World in Data.
Analysis
In 2023, polio number unvaccinated in Tonga stood at 23.98.
The figure is up 0.6% on the previous year and down 13.8% over ten years.
Over the whole period, polio number unvaccinated in Tonga peaked at 2,454 in 1980 and was at its lowest, 23.6, in 2021.
Tonga ranks 184th 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.
Polio number unvaccinated in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 1980 | 2,454 | — |
| 1981 | 1,910 | -22.2% |
| 1982 | 602.2 | -68.5% |
| 1983 | 1,293 | +114.6% |
| 1984 | 1,628 | +25.9% |
| 1985 | 577.22 | -64.5% |
| 1986 | 829.71 | +43.7% |
| 1987 | 401.05 | -51.7% |
| 1988 | 245.36 | -38.8% |
| 1989 | 210.84 | -14.1% |
| 1990 | 205.17 | -2.7% |
| 1991 | 229.76 | +12.0% |
| 1992 | 28.44 | -87.6% |
| 1993 | 113.48 | +299.0% |
| 1994 | 284.1 | +150.4% |
| 1995 | 200.76 | -29.3% |
| 1996 | 28.94 | -85.6% |
| 1997 | 114.92 | +297.1% |
| 1998 | 85.8 | -25.3% |
| 1999 | 171.96 | +100.4% |
| 2000 | 143.25 | -16.7% |
| 2001 | 144.2 | +0.7% |
| 2002 | 289 | +100.4% |
| 2003 | 57.88 | -80.0% |
| 2004 | 29.29 | -49.4% |
| 2005 | 29.59 | +1.0% |
| 2006 | 29.65 | +0.2% |
| 2007 | 29.5 | -0.5% |
| 2008 | 29.19 | -1.1% |
| 2009 | 28.64 | -1.9% |
| 2010 | 28.33 | -1.1% |
| 2011 | 29.21 | +3.1% |
| 2012 | 145.1 | +396.7% |
| 2013 | 27.83 | -80.8% |
| 2014 | 54.76 | +96.8% |
| 2015 | 108.64 | +98.4% |
| 2016 | 107.68 | -0.9% |
| 2017 | 25.99 | -75.9% |
| 2018 | 24.98 | -3.9% |
| 2019 | 24.33 | -2.6% |
| 2020 | 23.81 | -2.1% |
| 2021 | 23.6 | -0.9% |
| 2022 | 23.84 | +1.0% |
| 2023 | 23.98 | +0.6% |
Tonga compared with similar countries
- Tonga's 23.98 is below the median for upper middle income countries, which is 4,188, 1% of the median. (58 countries reporting)
- Tonga's 23.98 is below the median for East Asia & Pacific, which is 6,080, 0% of the median. (30 countries reporting)
Biggest year-on-year movements
Years where Polio number unvaccinated in Tonga 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 |
|---|---|---|---|
| 2012 | +396.7% | 29.21 | 145.1 |
| 1993 | +299.0% | 28.44 | 113.48 |
| 1997 | +297.1% | 28.94 | 114.92 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 1,015 | 210.84 | 2,454 | 10 |
| 1990s | 146.33 | 28.44 | 284.1 | 10 |
| 2000s | 81.02 | 28.64 | 289 | 10 |
| 2010s | 57.69 | 24.33 | 145.1 | 10 |
| 2020s | 23.81 | 23.6 | 23.98 | 4 |
Countries ranked near Tonga
- 181 Maldives 59.3 compare
- 182 Seychelles 54.12 compare
- 183 Cook Islands 26.32 compare
- 185 Saint Kitts and Nevis 22.36 compare
- 186 Antigua and Barbuda 22.18 compare
- 187 San Marino 19.89 compare
More health data for Tonga
- Un projection of annual infant deaths, annual growth rate -33.33 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 2.33 % change on previous year (2090)
- Un projection of annual infant deaths 2 (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate -1.42 % 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 0.0535 units per person (2025)
- Population ages 00-04, male, annual growth rate -1.36 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, male, per capita 0.0578 units per person (2025)
Frequently asked questions
- What is polio number unvaccinated in Tonga?
- Polio number unvaccinated in Tonga was 23.98 in 2023, according to Our World in Data.
- What is the highest polio number unvaccinated recorded in Tonga?
- The highest recorded value was 2,454 in 1980.
- What is the lowest polio number unvaccinated recorded in Tonga?
- The lowest recorded value was 23.6 in 2021.
- How does Tonga rank for polio number unvaccinated?
- Tonga ranks 184th out of 194 countries with data for 2023.
- Is polio number unvaccinated rising or falling in Tonga?
- Over the last ten years it is down 13.8%. The long-run trend across the full record is volatile.
- Where does this Tonga data come from?
- The figures come from Our World in Data, published as part of Polio number unvaccinated. Statizoid updates them automatically from the source API.
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