This is the 17095th most frequent Russian word.
среднедушевого
"Среднедушевого" means "per capita" in English.
The word "среднедушевого" is used as an adjective to describe "дохода" (income) indicating that it is calculated on a per capita basis.
Уровень среднедушевого дохода в стране вырос за последние годы.
The level of per capita income in the country has increased in recent years.
In this sentence, "среднедушевого" is used as an adjective to describe "потребления" (consumption), showing a specific calculation for individual level.
Расчёт среднедушевого потребления воды помогает оценить ресурсы региона.
Calculating per capita water consumption helps assess the region's resources.
Here, "среднедушевого" qualifies "показателя расходов" (indicator of expenditures), indicating its nature of being measured per individual.