Number of one-year-olds who are not vaccinated against diphtheria in New Zealand
New Zealand: Number of one-year-olds who are not vaccinated against diphtheria was 8.5 % change on previous year in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in New Zealand, 1981–2023
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
The most recent figure for number of one-year-olds who are not vaccinated against diphtheria in New Zealand is 8.5 % change on previous year, measured in 2023.
Compared with earlier readings it is down 4.2% on the previous year and down 28.3% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in New Zealand peaked at 98.27 % change on previous year in 1991 and was at its lowest, -48.05 % change on previous year, in 1990.
New Zealand ranks 53rd of 194 countries on this measure, in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not vaccinated against diphtheria in New Zealand, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1981 | 16.12 % change on previous year | — |
| 1982 | -4.3 % change on previous year | -126.7% |
| 1983 | -0.5789 % change on previous year | -86.5% |
| 1984 | -36.81 % change on previous year | +6258.0% |
| 1985 | 66.13 % change on previous year | -279.7% |
| 1986 | 8.38 % change on previous year | -87.3% |
| 1987 | 12.06 % change on previous year | +43.9% |
| 1988 | -3.78 % change on previous year | -131.3% |
| 1989 | -33.93 % change on previous year | +798.0% |
| 1990 | -48.05 % change on previous year | +41.6% |
| 1991 | 98.27 % change on previous year | -304.5% |
| 1992 | 1.64 % change on previous year | -98.3% |
| 1993 | -11.27 % change on previous year | -788.6% |
| 1994 | -7.3 % change on previous year | -35.2% |
| 1995 | -31.8 % change on previous year | +335.7% |
| 1996 | 8.71 % change on previous year | -127.4% |
| 1997 | 15.75 % change on previous year | +80.8% |
| 1998 | 34.92 % change on previous year | +121.8% |
| 1999 | -37.3 % change on previous year | -206.8% |
| 2000 | -17.6 % change on previous year | -52.8% |
| 2001 | 0 % change on previous year | -100.0% |
| 2002 | -0.2868 % change on previous year | — |
| 2003 | -0.8986 % change on previous year | +213.3% |
| 2004 | 10.96 % change on previous year | -1319.4% |
| 2005 | 1.84 % change on previous year | -83.2% |
| 2006 | 1.44 % change on previous year | -21.6% |
| 2007 | 11.98 % change on previous year | +731.6% |
| 2008 | -4.57 % change on previous year | -138.1% |
| 2009 | -25.14 % change on previous year | +450.1% |
| 2010 | -11.7 % change on previous year | -53.5% |
| 2011 | -28.85 % change on previous year | +146.5% |
| 2012 | 37.57 % change on previous year | -230.2% |
| 2013 | 11.87 % change on previous year | -68.4% |
| 2014 | -14.11 % change on previous year | -218.9% |
| 2015 | 12.72 % change on previous year | -190.2% |
| 2016 | -0.0017 % change on previous year | -100.0% |
| 2017 | -24.4 % change on previous year | +1452124.5% |
| 2018 | 17.07 % change on previous year | -170.0% |
| 2019 | 14.01 % change on previous year | -17.9% |
| 2020 | -0.278 % change on previous year | -102.0% |
| 2021 | 24.98 % change on previous year | -9083.8% |
| 2022 | 8.87 % change on previous year | -64.5% |
| 2023 | 8.5 % change on previous year | -4.2% |
New Zealand compared with similar countries
- New Zealand's 8.5 % change on previous year is above the median for high income countries, which is -0.4453 % change on previous year. (63 countries reporting)
- New Zealand's 8.5 % change on previous year is above the median for East Asia & Pacific, which is -0.6561 % change on previous year. (30 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in New Zealand 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 |
|---|---|---|---|
| 2017 | -1452124.5% | -0.0017 % change on previous year | -24.4 % change on previous year |
| 2021 | +9083.8% | -0.278 % change on previous year | 24.98 % change on previous year |
| 1984 | -6258.0% | -0.5789 % change on previous year | -36.81 % change on previous year |
| 2004 | +1319.4% | -0.8986 % change on previous year | 10.96 % change on previous year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 2.59 % change on previous year | -36.81 % change on previous year | 66.13 % change on previous year | 9 |
| 1990s | 2.36 % change on previous year | -48.05 % change on previous year | 98.27 % change on previous year | 10 |
| 2000s | -2.23 % change on previous year | -25.14 % change on previous year | 11.98 % change on previous year | 10 |
| 2010s | 1.42 % change on previous year | -28.85 % change on previous year | 37.57 % change on previous year | 10 |
| 2020s | 10.52 % change on previous year | -0.278 % change on previous year | 24.98 % change on previous year | 4 |
Countries ranked near New Zealand
- 50 Comoros 14.2 % change on previous year compare
- 51 Kiribati 11.28 % change on previous year compare
- 52 Somalia 8.81 % change on previous year compare
- 54 San Marino 7.17 % change on previous year compare
- 55 Barbados 6.87 % change on previous year compare
- 56 Bolivia 6.68 % change on previous year compare
More health data for New Zealand
- Un projection of annual infant deaths, annual growth rate -2.94 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate -0.4815 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,116 deaths per 1,000 people (2090)
- Number of infants who die before age 1 33 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate -0.1187 % 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 0.0277 units per person (2025)
- Population ages 00-04, male, annual growth rate 0.018 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against diphtheria in New Zealand?
- Number of one-year-olds who are not vaccinated against diphtheria in New Zealand was 8.5 % change on previous year in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in New Zealand?
- The highest recorded value was 98.27 % change on previous year in 1991.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in New Zealand?
- The lowest recorded value was -48.05 % change on previous year in 1990.
- How does New Zealand rank for number of one-year-olds who are not vaccinated against diphtheria?
- New Zealand ranks 53rd out of 194 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in New Zealand?
- Over the last ten years it is down 28.3%. 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 Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, annual growth rate. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 43 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 Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
Computed from
- Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data
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 Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.