Diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region)

South-East Asia (WHO region): Diphtheria - number of reported cases, annual growth rate was -41.03 % change on previous year in 2025. ◆ Volatile

Latest (2025)
-41.03 % change on previous year
Change on year
down 189.9%
Rank
10th
of 11 groups
All-time high
164.93 % change on previous year
in 2000
All-time low
-65.4 % change on previous year
in 2015
Years of data
45
1981–2025

Diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region), 1981–2025

-500501001501981200320251981: -32.5 % change on previous year1982: -28.5 % change on previous year1983: -9.6 % change on previous year1984: 9.9 % change on previous year1985: -13.7 % change on previous year1986: -37.2 % change on previous year1987: 21.8 % change on previous year1988: 26.8 % change on previous year1989: -27.6 % change on previous year1990: -26.2 % change on previous year1991: 44.3 % change on previous year1992: -32.9 % change on previous year1993: -14.7 % change on previous year1994: -55.7 % change on previous year1995: 30.6 % change on previous year1996: -8.5 % change on previous year1997: -46.6 % change on previous year1998: -5.3 % change on previous year1999: -1 % change on previous year2000: 164.9 % change on previous year2001: 10.4 % change on previous year2002: -7.8 % change on previous year2003: -18.5 % change on previous year2004: 92.1 % change on previous year2005: -30.8 % change on previous year2006: -50.9 % change on previous year2007: 34.1 % change on previous year2008: 5.8 % change on previous year2009: -7.7 % change on previous year2010: -4.5 % change on previous year2011: 18.6 % change on previous year2012: -36.9 % change on previous year2013: 19.7 % change on previous year2014: 118.9 % change on previous year2015: -65.4 % change on previous year2016: 46.7 % change on previous year2017: 66 % change on previous year2018: 52 % change on previous year2019: 4.9 % change on previous year2020: -61.5 % change on previous year2021: -52.7 % change on previous year2022: 93 % change on previous year2023: 16.4 % change on previous year2024: 45.6 % change on previous year2025: -41 % change on previous year

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

Analysis

The most recent figure for diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region) is -41.03 % change on previous year, measured in 2025.

That represents a change of down 189.9% on the previous year and up 37.3% over ten years.

Over the whole period, diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region) peaked at 164.93 % change on previous year in 2000 and was at its lowest, -65.4 % change on previous year, in 2015.

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 South-East Asia (WHO region), year by year

Annual values for Diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region), 1981 to 2025.
Year % change on previous year Change
1981 -32.45 % change on previous year
1982 -28.51 % change on previous year -12.1%
1983 -9.56 % change on previous year -66.5%
1984 9.94 % change on previous year -203.9%
1985 -13.74 % change on previous year -238.2%
1986 -37.19 % change on previous year +170.7%
1987 21.84 % change on previous year -158.7%
1988 26.75 % change on previous year +22.5%
1989 -27.56 % change on previous year -203.0%
1990 -26.18 % change on previous year -5.0%
1991 44.27 % change on previous year -269.1%
1992 -32.89 % change on previous year -174.3%
1993 -14.65 % change on previous year -55.4%
1994 -55.67 % change on previous year +279.9%
1995 30.64 % change on previous year -155.0%
1996 -8.49 % change on previous year -127.7%
1997 -46.6 % change on previous year +449.2%
1998 -5.33 % change on previous year -88.6%
1999 -1.01 % change on previous year -81.0%
2000 164.93 % change on previous year -16412.6%
2001 10.35 % change on previous year -93.7%
2002 -7.75 % change on previous year -174.9%
2003 -18.54 % change on previous year +139.1%
2004 92.1 % change on previous year -596.8%
2005 -30.82 % change on previous year -133.5%
2006 -50.94 % change on previous year +65.3%
2007 34.13 % change on previous year -167.0%
2008 5.82 % change on previous year -82.9%
2009 -7.66 % change on previous year -231.5%
2010 -4.46 % change on previous year -41.8%
2011 18.57 % change on previous year -516.8%
2012 -36.86 % change on previous year -298.5%
2013 19.7 % change on previous year -153.4%
2014 118.94 % change on previous year +503.7%
2015 -65.4 % change on previous year -155.0%
2016 46.73 % change on previous year -171.5%
2017 66 % change on previous year +41.3%
2018 52.04 % change on previous year -21.2%
2019 4.92 % change on previous year -90.6%
2020 -61.53 % change on previous year -1351.2%
2021 -52.69 % change on previous year -14.4%
2022 93 % change on previous year -276.5%
2023 16.38 % change on previous year -82.4%
2024 45.63 % change on previous year +178.5%
2025 -41.03 % change on previous year -189.9%

Biggest year-on-year movements

Years where Diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region) 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.

YearChange FromTo
2000 +16412.6% -1.01 % change on previous year 164.93 % change on previous year

Averages by decade

DecadeAverage LowestHighest Years
1980s -10.05 % change on previous year -37.19 % change on previous year 26.75 % change on previous year 9
1990s -11.59 % change on previous year -55.67 % change on previous year 44.27 % change on previous year 10
2000s 19.16 % change on previous year -50.94 % change on previous year 164.93 % change on previous year 10
2010s 22.02 % change on previous year -65.4 % change on previous year 118.94 % change on previous year 10
2020s -0.0394 % change on previous year -61.53 % change on previous year 93 % change on previous year 6

Countries ranked near South-East Asia (WHO region)

  1. 7 Congo, Democratic Republic of the 281.25 % change on previous year compare
  2. 8 Gabon 233.33 % change on previous year compare
  3. 9 Spain 200 % change on previous year compare
  4. 9 Cambodia 200 % change on previous year compare
  5. 9 Poland 200 % change on previous year compare
  6. 12 Australia 188.89 % change on previous year compare
  7. 13 Nepal 159.26 % change on previous year compare

See the full ranking of 152 places →

More health data for South-East Asia (WHO region)

All data for South-East Asia (WHO region) →

Frequently asked questions

What is diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region)?
Diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region) was -41.03 % change on previous year in 2025, according to Statizoid (derived).
What is the highest diphtheria - number of reported cases, annual growth rate recorded in South-East Asia (WHO region)?
The highest recorded value was 164.93 % change on previous year in 2000.
What is the lowest diphtheria - number of reported cases, annual growth rate recorded in South-East Asia (WHO region)?
The lowest recorded value was -65.4 % change on previous year in 2015.
How does South-East Asia (WHO region) rank for diphtheria - number of reported cases, annual growth rate?
South-East Asia (WHO region) ranks 10th out of 11 groups with data for 2025.
Is diphtheria - number of reported cases, annual growth rate rising or falling in South-East Asia (WHO region)?
Over the last ten years it is up 37.3%. The long-run trend across the full record is volatile.
Where does this South-East Asia (WHO region) 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 South-East Asia (WHO region). Statizoid, drawing on Statizoid (derived). Retrieved 14 September 2026, from https://health.statizoid.com/stat/diphtheria-number-of-reported-cases-annual-growth-rate/south-east-asia-who-region/

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<a href="https://health.statizoid.com/stat/diphtheria-number-of-reported-cases-annual-growth-rate/south-east-asia-who-region/">Diphtheria - number of reported cases, annual growth rate in South-East Asia (WHO region)</a> — Statizoid

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.