Polio number unvaccinated in Samoa
Samoa: Polio number unvaccinated was 883.2 in 2023. ◆ Volatile
Polio number unvaccinated in Samoa, 1980–2023
Source: Our World in Data.
Analysis
The most recent figure for polio number unvaccinated in Samoa is 883.2, measured in 2023.
Compared with earlier readings it is down 35.2% on the previous year and down 21.4% over ten years.
Over the whole period, polio number unvaccinated in Samoa peaked at 3,719 in 1980 and was at its lowest, 54.92, in 1998.
Samoa ranks 152nd 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 Samoa, year by year
| Year | Value | Change |
|---|---|---|
| 1980 | 3,719 | — |
| 1981 | 1,786 | -52.0% |
| 1982 | 683.93 | -61.7% |
| 1983 | 577.5 | -15.6% |
| 1984 | 210.2 | -63.6% |
| 1985 | 423.28 | +101.4% |
| 1986 | 324.84 | -23.3% |
| 1987 | 384.51 | +18.4% |
| 1988 | 539.6 | +40.3% |
| 1989 | 1,782 | +230.3% |
| 1990 | 620.52 | -65.2% |
| 1991 | 1,089 | +75.5% |
| 1992 | 470.79 | -56.8% |
| 1993 | 422.24 | -10.3% |
| 1994 | 369.74 | -12.4% |
| 1995 | 317.1 | -14.2% |
| 1996 | 269.05 | -15.2% |
| 1997 | 55.27 | -79.5% |
| 1998 | 54.92 | -0.6% |
| 1999 | 160.53 | +192.3% |
| 2000 | 107.92 | -32.8% |
| 2001 | 655.8 | +507.7% |
| 2002 | 494.28 | -24.6% |
| 2003 | 541 | +9.5% |
| 2004 | 3,425 | +533.1% |
| 2005 | 1,780 | -48.0% |
| 2006 | 2,673 | +50.2% |
| 2007 | 1,946 | -27.2% |
| 2008 | 1,651 | -15.2% |
| 2009 | 2,124 | +28.6% |
| 2010 | 1,452 | -31.6% |
| 2011 | 1,208 | -16.8% |
| 2012 | 1,057 | -12.5% |
| 2013 | 1,123 | +6.3% |
| 2014 | 1,416 | +26.1% |
| 2015 | 1,297 | -8.4% |
| 2016 | 1,588 | +22.5% |
| 2017 | 1,985 | +25.0% |
| 2018 | 3,263 | +64.4% |
| 2019 | 1,890 | -42.1% |
| 2020 | 653.18 | -65.4% |
| 2021 | 1,168 | +78.8% |
| 2022 | 1,363 | +16.7% |
| 2023 | 883.2 | -35.2% |
Samoa compared with similar countries
- Samoa's 883.2 is below the median for upper middle income countries, which is 4,188, 21% of the median. (58 countries reporting)
- Samoa's 883.2 is below the median for East Asia & Pacific, which is 6,080, 15% of the median. (30 countries reporting)
Biggest year-on-year movements
Years where Polio number unvaccinated in Samoa 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 |
|---|---|---|---|
| 2004 | +533.1% | 541 | 3,425 |
| 2001 | +507.7% | 107.92 | 655.8 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 1,043 | 210.2 | 3,719 | 10 |
| 1990s | 382.94 | 54.92 | 1,089 | 10 |
| 2000s | 1,540 | 107.92 | 3,425 | 10 |
| 2010s | 1,628 | 1,057 | 3,263 | 10 |
| 2020s | 1,017 | 653.18 | 1,363 | 4 |
Countries ranked near Samoa
More health data for Samoa
- Un projection of annual infant deaths, annual growth rate 0 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 1.71 % change on previous year (2090)
- Un projection of annual infant deaths 17 (2100)
- Neonatal tetanus - number of reported cases, gaps filled 1 (2025)
- Population ages 00-04, female, annual growth rate -2.45 % 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 0.0591 units per person (2025)
- Population ages 00-04, male, annual growth rate -2.5 % 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 0.0634 units per person (2025)
Frequently asked questions
- What is polio number unvaccinated in Samoa?
- Polio number unvaccinated in Samoa was 883.2 in 2023, according to Our World in Data.
- What is the highest polio number unvaccinated recorded in Samoa?
- The highest recorded value was 3,719 in 1980.
- What is the lowest polio number unvaccinated recorded in Samoa?
- The lowest recorded value was 54.92 in 1998.
- How does Samoa rank for polio number unvaccinated?
- Samoa ranks 152nd out of 194 countries with data for 2023.
- Is polio number unvaccinated rising or falling in Samoa?
- Over the last ten years it is down 21.4%. The long-run trend across the full record is volatile.
- Where does this Samoa 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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