How many years of comparable data are there for Nigeria and Tanzania?

111 years are reported by both, from 1915 to 2025.

Where does this data come from?

Statizoid (derived), published as Key features of liberal democracy, gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Nigeria vs Tanzania: Key features of liberal democracy, gaps filled

Nigeria

0.311

in 2025

Tanzania

0.297

in 2025

Nigeria rank

95th

Tanzania rank

96th

Key features of liberal democracy, gaps filled over time

Nigeria
Tanzania

How they compare

Nigeria currently reports 0.311 against 0.297 in Tanzania, a difference of 0.014.

The two have swapped places 7 times across 111 shared years of data; in 1915 it was Tanzania ahead.

Nigeria ranks 95th and Tanzania ranks 96th of 176 countries.

Across the 12 decades both report, Nigeria averaged higher in 4 and Tanzania in 8.

Head to head by decade

Decade	Nigeria	Tanzania	Difference	Ahead
1910s	0.064	0.0728	0.0088	Tanzania
1920s	0.09	0.0786	0.0114	Nigeria
1930s	0.101	0.0892	0.0118	Nigeria
1940s	0.1036	0.09	0.0136	Nigeria
1950s	0.1242	0.0953	0.0289	Nigeria
1960s	0.152	0.2331	0.0811	Tanzania
1970s	0.0985	0.2393	0.1408	Tanzania
1980s	0.1568	0.2453	0.0885	Tanzania
1990s	0.119	0.3566	0.2376	Tanzania
2000s	0.3075	0.3839	0.0764	Tanzania
2010s	0.3737	0.3745	0.0008	Tanzania
2020s	0.3237	0.335	0.0113	Tanzania

Averages of every year both report within each decade.

Frequently asked questions

Which has higher key features of liberal democracy, gaps filled, Nigeria or Tanzania?: Nigeria, at 0.311 against 0.297 in Tanzania as of 2025.
What is the difference in key features of liberal democracy, gaps filled between Nigeria and Tanzania?: 0.014, with Nigeria ahead.
How many years of comparable data are there for Nigeria and Tanzania?: 111 years are reported by both, from 1915 to 2025.
How do Nigeria and Tanzania rank globally for key features of liberal democracy, gaps filled?: Nigeria ranks 95th and Tanzania ranks 96th of 176 countries.
Where does this data come from?: Statizoid (derived), published as Key features of liberal democracy, gaps filled. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Nigeria vs Tanzania: Key features of liberal democracy, gaps filled. Statizoid, drawing on Statizoid (derived). Retrieved 28 August 2026, from https://social-development.statizoid.com/compare/key-features-of-liberal-democracy-gaps-filled/nigeria/tanzania/

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About this data

Indicator: Key features of liberal democracy, gaps filled
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 176 places, 28,729 data points, 1789–2025
Last refreshed: 21 August 2026

Key features of liberal democracy with 58 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.