How many years of comparable data are there for Benin and Tanzania, United Republic of?

43 years are reported by both, from 1980 to 2023.

Where does this data come from?

World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Reported versus estimated cases of polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Benin vs Tanzania, United Republic of: Reported versus estimated cases of polio

Benin

3 cases

in 2023

Tanzania, United Republic of

2 cases

in 2023

Benin rank

16th

Tanzania, United Republic of rank

19th

Reported versus estimated cases of polio over time

Benin
Tanzania, United Republic of

How they compare

Benin currently reports 3 cases against 2 cases in Tanzania, United Republic of, a difference of 1 cases.

That makes Benin's figure about 1.5 times Tanzania, United Republic of's.

The two have swapped places 10 times across 43 shared years of data; in 1980 it was Benin ahead.

Benin ranks 16th and Tanzania, United Republic of ranks 19th of 199 countries.

Across the 5 decades both report, Benin averaged higher in 4 and Tanzania, United Republic of in 1.

Head to head by decade

Decade	Benin	Tanzania, United Republic of	Difference	Ahead
1980s	96.3 cases	155 cases	58.7 cases	Tanzania, United Republic of
1990s	35.11 cases	12.33 cases	22.78 cases	Benin
2000s	3.5 cases	0 cases	3.5 cases	Benin
2010s	0.8 cases	0 cases	0.8 cases	Benin
2020s	5.5 cases	0.5 cases	5 cases	Benin

Averages of every year both report within each decade.

Frequently asked questions

Which has higher reported versus estimated cases of polio, Benin or Tanzania, United Republic of?: Benin, at 3 cases against 2 cases in Tanzania, United Republic of as of 2023.
What is the difference in reported versus estimated cases of polio between Benin and Tanzania, United Republic of?: 1 cases, with Benin ahead.
How many years of comparable data are there for Benin and Tanzania, United Republic of?: 43 years are reported by both, from 1980 to 2023.
How do Benin and Tanzania, United Republic of rank globally for reported versus estimated cases of polio?: Benin ranks 16th and Tanzania, United Republic of ranks 19th of 199 countries.
Where does this data come from?: World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Reported versus estimated cases of polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Benin vs Tanzania, United Republic of: Reported versus estimated cases of polio. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data. Retrieved 30 August 2026, from https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/benin/tanzania/

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<a href="https://reference.statizoid.com/compare/reported-vs-estimated-total-number-of-paralytic-polio-cases-globally/benin/tanzania/">Benin vs Tanzania, United Republic of: Reported versus estimated cases of polio</a> — Statizoid

About this data

Indicator: Reported versus estimated cases of polio
Unit: cases
Source: World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 199 places, 7,608 data points, 1980–2023
Last refreshed: 28 August 2026

Sum of wild poliovirus cases and circulating vaccine derived poliovirus cases.