Life Expectancy 2024 Usa 2024. World population prospects 2024 is the 28th edition of the official estimates and projections of the global population that have been published by the united nations since 1951. Life expectancy rose to 77.5 years on average in 2022, a slight increase of 1.1 years from 2021, according to new studies from the centers for disease control and.
Average number of years people are expected to live. Period life expectancy is a metric that summarizes death rates across all age groups in one particular year.