Diphtheria - number of reported cases, gaps filled in New Zealand
New Zealand: Diphtheria - number of reported cases, gaps filled was 4 in 2025. ◆ Volatile
Diphtheria - number of reported cases, gaps filled in New Zealand, 1974–2025
Source: Statizoid (derived).
Analysis
The most recent figure for diphtheria - number of reported cases, gaps filled in New Zealand is 4, measured in 2025.
The figure is up 100.0% on the previous year and up 100.0% over ten years.
Over the whole period, diphtheria - number of reported cases, gaps filled in New Zealand peaked at 21 in 1974 and was at its lowest, 0, in 1981.
New Zealand ranks 41st of 210 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Diphtheria - number of reported cases, gaps filled in New Zealand, year by year
| Year | Value | Change |
|---|---|---|
| 1974 | 21 | — |
| 1975 | 1 | -95.2% |
| 1976 | 6 | +500.0% |
| 1977 | 1 | -83.3% |
| 1978 | 1 | +0.0% |
| 1979 | 1 | +0.0% |
| 1980 | 1 | +0.0% |
| 1981 | 0 | -100.0% |
| 1982 | 1 | — |
| 1983 | 4 | +300.0% |
| 1984 | 2 | -50.0% |
| 1985 | 0 | -100.0% |
| 1986 | 1 | — |
| 1987 | 2 | +100.0% |
| 1988 | 0 | -100.0% |
| 1989 | 0 | — |
| 1990 | 0 | — |
| 1991 | 0 | — |
| 1992 | 0 | — |
| 1993 | 0 | — |
| 1994 | 0 | — |
| 1995 | 0 | — |
| 1996 | 0 | — |
| 1997 | 0 | — |
| 1998 | 1 | — |
| 1999 | 0 | -100.0% |
| 2000 | 0 | — |
| 2001 | 0 | — |
| 2002 | 1 | — |
| 2003 | 0 | -100.0% |
| 2004 | 0 | — |
| 2005 | 0 | — |
| 2006 | 0 | — |
| 2007 | 0 | — |
| 2008 | 0 | — |
| 2009 | 0 | — |
| 2010 | 0 | — |
| 2011 | 20 | — |
| 2012 | 0 | -100.0% |
| 2013 | 0 | — |
| 2014 | 2 | — |
| 2015 | 2 | +0.0% |
| 2016 | 1 | -50.0% |
| 2017 | 1 | +0.0% |
| 2018 | 0 | -100.0% |
| 2019 | 1 | — |
| 2020 | 0 | -100.0% |
| 2021 | 0 | — |
| 2022 | 2 | — |
| 2023 | 2 | +0.0% |
| 2024 | 2 | +0.0% |
| 2025 | 4 | +100.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 5.17 | 1 | 21 | 6 |
| 1980s | 1.1 | 0 | 4 | 10 |
| 1990s | 0.1 | 0 | 1 | 10 |
| 2000s | 0.1 | 0 | 1 | 10 |
| 2010s | 2.7 | 0 | 20 | 10 |
| 2020s | 1.67 | 0 | 4 | 6 |
Countries ranked near New Zealand
More health data for New Zealand
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- Population ages 60-64, female, per capita 0.0313 units per person (2025)
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Frequently asked questions
- What is diphtheria - number of reported cases, gaps filled in New Zealand?
- Diphtheria - number of reported cases, gaps filled in New Zealand was 4 in 2025, according to Statizoid (derived).
- What is the highest diphtheria - number of reported cases, gaps filled recorded in New Zealand?
- The highest recorded value was 21 in 1974.
- What is the lowest diphtheria - number of reported cases, gaps filled recorded in New Zealand?
- The lowest recorded value was 0 in 1981.
- How does New Zealand rank for diphtheria - number of reported cases, gaps filled?
- New Zealand ranks 41st out of 210 countries with data for 2025.
- Is diphtheria - number of reported cases, gaps filled rising or falling in New Zealand?
- Over the last ten years it is up 100.0%. The long-run trend across the full record is volatile.
- Where does this New Zealand data come from?
- The figures come from Statizoid (derived), published as part of Diphtheria - number of reported cases, gaps filled. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 52 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
Diphtheria - number of reported cases with 613 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.
Computed from
- Diphtheria - 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
Diphtheria - number of reported cases with 613 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.