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Estimates of world population by their nature are an aspect of modernity, possible only since the Age of Discovery.Early estimates for the population of the world [10] date to the 17th century: William Petty, in 1682, estimated the world population at 320 million (current estimates ranging close to twice this number); by the late 18th century, estimates ranged close to one billion (consistent ...
As of 2009, the average birth rate (unclear whether this is the weighted average rate per country [with each country getting a weight of 1], or the unweighted average of the entire world population) for the whole world is 19.95 per year per 1000 total population, a 0.48% decline from 2003's world birth rate of 20.43 per 1000 total population.
The following list sorts sovereign states and dependent territories and by the total number of deaths. Figures are from the 2024 revision of the United Nations World Population Prospects report, for the calendar year 2023.
Graph of world population over the past 12,000 years . As a general rule, the confidence of estimates on historical world population decreases for the more distant past. Robust population data exist only for the last two or three centuries. Until the late 18th century, few governments had ever performed an accurate census.
The 2024 average of 17 births per 1,000 total population equates to approximately 4.3 births per second or about 260 births per minute for the world. On average, two people in the world die every second or about 121 per minute.
The following list sorts sovereign states and dependent territories and by the total number of births. Figures are from the 2024 revision of the United Nations World Population Prospects report, for the calendar year 2023.
The population pattern of less-developed regions of the world in recent years has been marked by gradually declining birth rates. These followed an earlier sharp reduction in death rates. [22] This transition from high birth and death rates to low birth and death rates is often referred to as the demographic transition. [22]
The UN's estimates have decreased strongly in recent years due to sharp declines in global birth rates. [3] Others have challenged many recent population projections as having underestimated population growth. [4] The world human population has been growing since the end of the Black Death, around the year 1350. [5]