Pertussis - number of reported cases, annual growth rate in Samoa
Samoa: Pertussis - number of reported cases, annual growth rate was -64.45 % change on previous year in 2025. ◆ Volatile
Pertussis - number of reported cases, annual growth rate in Samoa, 1975–2025
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
In 2025, pertussis - number of reported cases, annual growth rate in Samoa stood at -64.45 % change on previous year.
That represents a change of up 35.5% over ten years.
Over the whole period, pertussis - number of reported cases, annual growth rate in Samoa peaked at 450 % change on previous year in 1975 and was at its lowest, -100 % change on previous year, in 1983.
That places Samoa 61st out of 191 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Pertussis - number of reported cases, annual growth rate in Samoa, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1975 | 450 % change on previous year | — |
| 1976 | 110.61 % change on previous year | -75.4% |
| 1977 | -34.53 % change on previous year | -131.2% |
| 1978 | 53.85 % change on previous year | -255.9% |
| 1979 | -71.43 % change on previous year | -232.7% |
| 1980 | 182.5 % change on previous year | -355.5% |
| 1981 | -12.39 % change on previous year | -106.8% |
| 1982 | -33.33 % change on previous year | +169.0% |
| 1983 | -100 % change on previous year | +200.0% |
| 1990 | -100 % change on previous year | -0.0% |
| 1993 | -100 % change on previous year | -0.0% |
| 2004 | -100 % change on previous year | -0.0% |
| 2009 | -100 % change on previous year | -0.0% |
| 2011 | -100 % change on previous year | -0.0% |
| 2025 | -64.45 % change on previous year | -35.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 101.7 % change on previous year | -71.43 % change on previous year | 450 % change on previous year | 5 |
| 1980s | 9.19 % change on previous year | -100 % change on previous year | 182.5 % change on previous year | 4 |
| 1990s | -100 % change on previous year | -100 % change on previous year | -100 % change on previous year | 2 |
| 2000s | -100 % change on previous year | -100 % change on previous year | -100 % change on previous year | 2 |
| 2010s | -100 % change on previous year | -100 % change on previous year | -100 % change on previous year | 1 |
| 2020s | -64.45 % change on previous year | -64.45 % change on previous year | -64.45 % change on previous year | 1 |
Countries ranked near Samoa
- 58 Morocco -58.14 % change on previous year compare
- 59 Pakistan -59.07 % change on previous year compare
- 60 Norway -61.08 % change on previous year compare
- 62 Brazil -64.56 % change on previous year compare
- 63 Sri Lanka -64.71 % change on previous year compare
- 64 Poland -65.48 % change on previous year compare
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)
- Estimated changes in temperature-related death rates compared to projected death rates 708.7 deaths per 1,000 people (2090)
- Number of infants who die before age 1 17 deaths (2100)
- Population ages 80 and above, female, per capita 0.0057 units per person (2025)
- Population ages 80 and above, male, annual growth rate 3.61 % change on previous year (2025)
- Population ages 80 and above, male, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 80 and above, male, per capita 0.0033 units per person (2025)
- Pertussis - number of reported cases, gaps filled 107 (2025)
- Pertussis - number of reported cases, per capita 0.0005 units per person (2025)
Frequently asked questions
- What is pertussis - number of reported cases, annual growth rate in Samoa?
- Pertussis - number of reported cases, annual growth rate in Samoa was -64.45 % change on previous year in 2025, according to Statizoid (derived).
- What is the highest pertussis - number of reported cases, annual growth rate recorded in Samoa?
- The highest recorded value was 450 % change on previous year in 1975.
- What is the lowest pertussis - number of reported cases, annual growth rate recorded in Samoa?
- The lowest recorded value was -100 % change on previous year in 1983.
- How does Samoa rank for pertussis - number of reported cases, annual growth rate?
- Samoa ranks 61st out of 191 countries with data for 2025.
- Is pertussis - number of reported cases, annual growth rate rising or falling in Samoa?
- Over the last ten years it is up 35.5%. The long-run trend across the full record is volatile.
- Where does this Samoa data come from?
- The figures come from Statizoid (derived), published as part of Pertussis - number of reported cases, annual growth rate. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 15 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 Pertussis - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
Computed from
- Pertussis - number of reported cases World Health Organization, Global Health Observatory
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 Pertussis - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.