What Year did the Population Reach x Billion? - Statistics

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General Stats

This quiz has been taken 32 times
The average score is 6 of 8

Answer Stats

Population	Answer	% Correct
8 billion	2022	95%
6 billion	1999	90%
4 billion	1974	85%
5 billion	1987	85%
7 billion	2011	85%
2 billion	1927	80%
3 billion	1960	75%
1 billion	1804	25%

Score Distribution

Percent of People with Each Score

Percentile by Number Answered

Your Score History

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