World population milestones

World population milestones

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World population milestones in billions

Population	1	2	3	4	5	6	7	8	9

Year	1804	1927	1959	1974	1987	1999	2011	2022	2032

Years elapsed	––	123	32	15	13	12	12	11	10

Sentence(s)

World population took 123 years to reach two billion in 1927.

final_sentence: World population took 123 years to reach two billion in 1927.