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Official or national language. Spanish is the official language (either by law or de facto) in 20 sovereign states (including Equatorial Guinea, where it is official but not a native language), one dependent territory, and one partially recognized state, totaling around 442 million people. [1] [2]
Sep 23, 2021 · Lifespan is the total number of years lived by an individual. Healthspan is the number of disease-free years lived. Life expectancy and health-adjusted life expectancy are population-level measures of lifespan and healthspan, respectively. A gap of 9-year is deduced from comparing 2020 data for median probabilistic projection of life expectancy ...
Jul 6, 2023 · As of 15 June 2022, only 12 countries were vaccinating infants (children aged 0–4 yr), 6 being Central and South American countries (Fig. 3), and 26 countries in our dataset have not been ...
As countries get richer, fertility rates appear to decline to levels consis-tent, not with a constant population, but actually with a declining population. Conventional wisdom holds that in the future, global population will stabilize at something like eight or ten billion people. But maybe this is not correct.
This is a list of countries and dependencies ranked by population density, sorted by inhabitants per square kilometre or square mile. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1. The list also includes unrecognized but de facto independent countries.
Introduction 1 I.Introduction 1. A large majority of the world’s countries are experiencing significant shifts in the distribution of their populations by age,
Nov 7, 2018 · It is an axiom in demography and public health that life expectancy increases over time. 1 In nations that are free of war, famine, and disease outbreaks, the increase in life expectancy over time has been described as “so extraordinarily linear that it may be the most remarkable regularity of mass endeavor ever observed.” 1 (p1029) However, in the 1990s, public health researchers began ...
