Diphtheria - number of reported cases, annual growth rate in Australia

Australia: Diphtheria - number of reported cases, annual growth rate was 188.89 % change on previous year in 2025. ◆ Volatile

Latest (2025)
188.89 % change on previous year
Change on year
up 855.6%
World rank
12th
of 140 countries
All-time high
600 % change on previous year
in 1990
All-time low
-100 % change on previous year
in 1979
Years of data
30
1975–2025

Diphtheria - number of reported cases, annual growth rate in Australia, 1975–2025

-20002004006001975200020251975: -31.2 % change on previous year1976: -86.4 % change on previous year1977: 133.3 % change on previous year1978: -57.1 % change on previous year1979: -100 % change on previous year1982: -88.9 % change on previous year1983: -50 % change on previous year1984: -100 % change on previous year1986: 158.8 % change on previous year1987: -27.3 % change on previous year1988: 90.6 % change on previous year1989: -98.4 % change on previous year1990: 600 % change on previous year1991: 14.3 % change on previous year1992: 75 % change on previous year1993: 178.6 % change on previous year2002: -100 % change on previous year2012: -100 % change on previous year2014: 100 % change on previous year2015: 0 % change on previous year2016: 300 % change on previous year2017: 0 % change on previous year2018: 37.5 % change on previous year2019: -36.4 % change on previous year2020: 28.6 % change on previous year2021: -33.3 % change on previous year2022: 416.7 % change on previous year2023: -61.3 % change on previous year2024: -25 % change on previous year2025: 188.9 % change on previous year

Source: Statizoid (derived). Measured in % change on previous year.

Analysis

Australia recorded 188.89 % change on previous year for diphtheria - number of reported cases, annual growth rate in 2025.

That represents a change of up 855.6% on the previous year and up 561.1% over five years.

Over the whole period, diphtheria - number of reported cases, annual growth rate in Australia peaked at 600 % change on previous year in 1990 and was at its lowest, -100 % change on previous year, in 1979.

Australia ranks 12th of 140 countries on this measure, in the top 10%.

The series is highly variable year to year, so single readings are best treated with caution.

Diphtheria - number of reported cases, annual growth rate in Australia, year by year

Annual values for Diphtheria - number of reported cases, annual growth rate in Australia, 1975 to 2025.
Year % change on previous year Change
1975 -31.25 % change on previous year
1976 -86.36 % change on previous year +176.4%
1977 133.33 % change on previous year -254.4%
1978 -57.14 % change on previous year -142.9%
1979 -100 % change on previous year +75.0%
1982 -88.89 % change on previous year -11.1%
1983 -50 % change on previous year -43.8%
1984 -100 % change on previous year +100.0%
1986 158.82 % change on previous year -258.8%
1987 -27.27 % change on previous year -117.2%
1988 90.62 % change on previous year -432.3%
1989 -98.36 % change on previous year -208.5%
1990 600 % change on previous year -710.0%
1991 14.29 % change on previous year -97.6%
1992 75 % change on previous year +425.0%
1993 178.57 % change on previous year +138.1%
2002 -100 % change on previous year -156.0%
2012 -100 % change on previous year -0.0%
2014 100 % change on previous year -200.0%
2015 0 % change on previous year -100.0%
2016 300 % change on previous year
2017 0 % change on previous year -100.0%
2018 37.5 % change on previous year
2019 -36.36 % change on previous year -197.0%
2020 28.57 % change on previous year -178.6%
2021 -33.33 % change on previous year -216.7%
2022 416.67 % change on previous year -1350.0%
2023 -61.29 % change on previous year -114.7%
2024 -25 % change on previous year -59.2%
2025 188.89 % change on previous year -855.6%

Averages by decade

DecadeAverage LowestHighest Years
1970s -28.28 % change on previous year -100 % change on previous year 133.33 % change on previous year 5
1980s -16.44 % change on previous year -100 % change on previous year 158.82 % change on previous year 7
1990s 216.96 % change on previous year 14.29 % change on previous year 600 % change on previous year 4
2000s -100 % change on previous year -100 % change on previous year -100 % change on previous year 1
2010s 43.02 % change on previous year -100 % change on previous year 300 % change on previous year 7
2020s 85.75 % change on previous year -61.29 % change on previous year 416.67 % change on previous year 6

Countries ranked near Australia

  1. 9 Spain 200 % change on previous year compare
  2. 9 Cambodia 200 % change on previous year compare
  3. 9 Poland 200 % change on previous year compare
  4. 13 Nepal 159.26 % change on previous year compare
  5. 14 Canada 150 % change on previous year compare
  6. 14 Thailand 150 % change on previous year compare

See the full ranking of 152 places →

More health data for Australia

All data for Australia →

Frequently asked questions

What is diphtheria - number of reported cases, annual growth rate in Australia?
Diphtheria - number of reported cases, annual growth rate in Australia was 188.89 % change on previous year in 2025, according to Statizoid (derived).
What is the highest diphtheria - number of reported cases, annual growth rate recorded in Australia?
The highest recorded value was 600 % change on previous year in 1990.
What is the lowest diphtheria - number of reported cases, annual growth rate recorded in Australia?
The lowest recorded value was -100 % change on previous year in 1979.
How does Australia rank for diphtheria - number of reported cases, annual growth rate?
Australia ranks 12th out of 140 countries with data for 2025.
Where does this Australia data come from?
The figures come from Statizoid (derived), published as part of Diphtheria - number of reported cases, annual growth rate. Statizoid updates them automatically from the source API.

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Diphtheria - number of reported cases, annual growth rate in Australia. Statizoid, drawing on Statizoid (derived). Retrieved 31 August 2026, from https://health.statizoid.com/stat/diphtheria-number-of-reported-cases-annual-growth-rate/australia/

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How this figure is calculated

The year-on-year percentage change in Diphtheria - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.

Computed from

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

Indicator
Diphtheria - number of reported cases, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
152 places, 3,361 data points, 1975–2025
Last refreshed

The year-on-year percentage change in Diphtheria - number of reported cases. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.