How many years of comparable data are there for Sierra Leone and Yemen?

29 years are reported by both, from 1990 to 2018.

Where does this data come from?

Statizoid (derived), published as Africa's Development Dynamics (AfDD) Table 05 - Demographic estimates — Population, per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Sierra Leone vs Yemen: Africa's Development Dynamics (AfDD) Table 05 - Demographic estimates

Sierra Leone

0 Persons per US$ of GDP

in 2025

Yemen

0 Persons per US$ of GDP

in 2018

Sierra Leone rank

10th

Yemen rank

8th

Africa's Development Dynamics (AfDD) Table 05 - Demographic estimates over time

Sierra Leone
Yemen

How they compare

Yemen currently reports 0 Persons per US$ of GDP against 0 Persons per US$ of GDP in Sierra Leone, a difference of 0 Persons per US$ of GDP.

That makes Yemen's figure about 1.2 times Sierra Leone's.

The two have swapped places 1 time across 29 shared years of data; in 1990 it was Sierra Leone ahead.

Sierra Leone ranks 10th and Yemen ranks 8th of 166 countries.

Sierra Leone has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Sierra Leone	Yemen	Difference	Ahead
1990s	0 Persons per US$ of GDP	0 Persons per US$ of GDP	0 Persons per US$ of GDP	Sierra Leone
2000s	0 Persons per US$ of GDP	0 Persons per US$ of GDP	0 Persons per US$ of GDP	Sierra Leone
2010s	0 Persons per US$ of GDP	0 Persons per US$ of GDP	0 Persons per US$ of GDP	Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher africa's development dynamics (afdd) table 05 - demographic estimates, Sierra Leone or Yemen?: Yemen, at 0 Persons per US$ of GDP against 0 Persons per US$ of GDP in Sierra Leone as of 2018.
What is the difference in africa's development dynamics (afdd) table 05 - demographic estimates between Sierra Leone and Yemen?: 0 Persons per US$ of GDP, with Yemen ahead.
How many years of comparable data are there for Sierra Leone and Yemen?: 29 years are reported by both, from 1990 to 2018.
How do Sierra Leone and Yemen rank globally for africa's development dynamics (afdd) table 05 - demographic estimates?: Sierra Leone ranks 10th and Yemen ranks 8th of 166 countries.
Where does this data come from?: Statizoid (derived), published as Africa's Development Dynamics (AfDD) Table 05 - Demographic estimates — Population, per unit of GDP. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sierra Leone vs Yemen: Africa's Development Dynamics (AfDD) Table 05 - Demographic estimates. Statizoid, drawing on Statizoid (derived). Retrieved 26 August 2026, from https://population.statizoid.com/compare/africa-s-development-dynamics-afdd-table-05-demographic-estimates-population-per-unit-of/sierra-leone/yemen-rep/

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<a href="https://population.statizoid.com/compare/africa-s-development-dynamics-afdd-table-05-demographic-estimates-population-per-unit-of/sierra-leone/yemen-rep/">Sierra Leone vs Yemen: Africa's Development Dynamics (AfDD) Table 05 - Demographic estimates</a> — Statizoid

About this data

Indicator: Africa's Development Dynamics (AfDD) Table 05 - Demographic estimates — Population, per unit of GDP
Unit: Persons per US$ of GDP
Source: Statizoid (derived)
Licence: Derived by Statizoid from the sources named on the page
Coverage: 167 places, 5,915 data points, 1990–2025
Last refreshed: 19 August 2026

Africa's Development Dynamics (AfDD) Table 05 - Demographic estimates — Population divided by GDP (current US$), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.