How many years of comparable data are there for Australia and New Zealand?

173 years are reported by both, from 1853 to 2025.

Where does this data come from?

V-Dem (2026) – processed by Our World in Data, published as Government Effectiveness Index vs. Electoral Democracy Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Australia vs New Zealand: Government Effectiveness Index vs. Electoral Democracy Index

Australia

0.844

in 2025

New Zealand

0.849

in 2025

Australia rank

15th

New Zealand rank

13th

Government Effectiveness Index vs. Electoral Democracy Index over time

Australia
New Zealand

How they compare

New Zealand currently reports 0.849 against 0.844 in Australia, a difference of 0.005.

The two have swapped places 11 times across 173 shared years of data; in 1853 it was Australia ahead.

Australia ranks 15th and New Zealand ranks 13th of 175 countries.

Across the 18 decades both report, Australia averaged higher in 11 and New Zealand in 7.

Head to head by decade

Decade	Australia	New Zealand	Difference	Ahead
1850s	0.4201	0.3887	0.0314	Australia
1860s	0.5812	0.4969	0.0843	Australia
1870s	0.5811	0.5203	0.0608	Australia
1880s	0.5822	0.5718	0.0104	Australia
1890s	0.5798	0.7086	0.1288	New Zealand
1900s	0.7498	0.7947	0.0449	New Zealand
1910s	0.7557	0.7798	0.0241	New Zealand
1920s	0.7966	0.8035	0.0069	New Zealand
1930s	0.7958	0.7993	0.0035	New Zealand
1940s	0.7851	0.7843	0.0008	Australia
1950s	0.823	0.7963	0.0267	Australia
1960s	0.8416	0.8296	0.012	Australia
1970s	0.8642	0.8481	0.0161	Australia
1980s	0.8813	0.8585	0.0228	Australia
1990s	0.8882	0.8748	0.0134	Australia
2000s	0.8824	0.8811	0.0013	Australia
2010s	0.8697	0.8868	0.0171	New Zealand
2020s	0.8423	0.8718	0.0295	New Zealand

Averages of every year both report within each decade.

Frequently asked questions

Which has higher government effectiveness index vs. electoral democracy index, Australia or New Zealand?: New Zealand, at 0.849 against 0.844 in Australia as of 2025.
What is the difference in government effectiveness index vs. electoral democracy index between Australia and New Zealand?: 0.005, with New Zealand ahead.
How many years of comparable data are there for Australia and New Zealand?: 173 years are reported by both, from 1853 to 2025.
How do Australia and New Zealand rank globally for government effectiveness index vs. electoral democracy index?: Australia ranks 15th and New Zealand ranks 13th of 175 countries.
Where does this data come from?: V-Dem (2026) – processed by Our World in Data, published as Government Effectiveness Index vs. Electoral Democracy Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Australia vs New Zealand: Government Effectiveness Index vs. Electoral Democracy Index. Statizoid, drawing on V-Dem (2026) – processed by Our World in Data. Retrieved 29 August 2026, from https://social-development.statizoid.com/compare/government-effectiveness-vs-electoral-democracy-index/australia/new-zealand/

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<a href="https://social-development.statizoid.com/compare/government-effectiveness-vs-electoral-democracy-index/australia/new-zealand/">Australia vs New Zealand: Government Effectiveness Index vs. Electoral Democracy Index</a> — Statizoid

About this data

Indicator: Government Effectiveness Index vs. Electoral Democracy Index
Source: V-Dem (2026) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 175 places, 29,523 data points, 1789–2025
Last refreshed: 28 August 2026

Central estimate of the extent to which political leaders are elected under comprehensive suffrage in free and fair elections, and freedoms of association and expression are guaranteed.