Measles number unvaccinated in Tonga
Tonga: Measles number unvaccinated was 23.98 in 2023. ◆ Volatile
Measles number unvaccinated in Tonga, 1981–2023
Source: Our World in Data.
Analysis
The most recent figure for measles number unvaccinated in Tonga is 23.98, measured in 2023.
The figure is up 0.6% on the previous year and down 13.8% over ten years.
Over the whole period, measles number unvaccinated in Tonga peaked at 2,758 in 1981 and was at its lowest, 23.6, in 2021.
That places Tonga 190th out of 195 countries with data for 2023, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Measles number unvaccinated in Tonga, year by year
| Year | Value | Change |
|---|---|---|
| 1981 | 2,758 | — |
| 1982 | 1,686 | -38.9% |
| 1983 | 991.98 | -41.2% |
| 1984 | 1,718 | +73.2% |
| 1985 | 577.22 | -66.4% |
| 1986 | 1,936 | +235.4% |
| 1987 | 370.2 | -80.9% |
| 1988 | 582.73 | +57.4% |
| 1989 | 481.92 | -17.3% |
| 1990 | 410.34 | -14.9% |
| 1991 | 287.2 | -30.0% |
| 1992 | 369.72 | +28.7% |
| 1993 | 368.81 | -0.2% |
| 1994 | 397.74 | +7.8% |
| 1995 | 172.08 | -56.7% |
| 1996 | 144.7 | -15.9% |
| 1997 | 86.19 | -40.4% |
| 1998 | 114.4 | +32.7% |
| 1999 | 85.98 | -24.8% |
| 2000 | 143.25 | +66.6% |
| 2001 | 201.88 | +40.9% |
| 2002 | 289 | +43.2% |
| 2003 | 28.94 | -90.0% |
| 2004 | 29.29 | +1.2% |
| 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 | 27.38 | -1.6% |
| 2015 | 27.16 | -0.8% |
| 2016 | 53.84 | +98.2% |
| 2017 | 25.99 | -51.7% |
| 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 7,432, 0% of the median. (58 countries reporting)
- Tonga's 23.98 is below the median for East Asia & Pacific, which is 6,592, 0% of the median. (30 countries reporting)
Biggest year-on-year movements
Years where Measles 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 |
| 1986 | +235.4% | 577.22 | 1,936 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 1,234 | 370.2 | 2,758 | 9 |
| 1990s | 243.72 | 85.98 | 410.34 | 10 |
| 2000s | 83.89 | 28.64 | 289 | 10 |
| 2010s | 41.41 | 24.33 | 145.1 | 10 |
| 2020s | 23.81 | 23.6 | 23.98 | 4 |
Countries ranked near Tonga
- 187 Cook Islands 30.08 compare
- 188 Saint Kitts and Nevis 27.95 compare
- 189 San Marino 24.31 compare
- 191 Nauru 15.45 compare
- 192 Palau 7.84 compare
- 193 Andorra 4.48 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 measles number unvaccinated in Tonga?
- Measles number unvaccinated in Tonga was 23.98 in 2023, according to Our World in Data.
- What is the highest measles number unvaccinated recorded in Tonga?
- The highest recorded value was 2,758 in 1981.
- What is the lowest measles number unvaccinated recorded in Tonga?
- The lowest recorded value was 23.6 in 2021.
- How does Tonga rank for measles number unvaccinated?
- Tonga ranks 190th out of 195 countries with data for 2023.
- Is measles 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 Measles number unvaccinated. Statizoid updates them automatically from the source API.
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