It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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As many as one third Americans flush the toilet while they are still on it.
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People with blue eyes are better able to see in the dark.
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47% of people have a nightmare at least once a month.
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Sociologists have found the worse the economy, the longer the women's skirts are and the better economy, the shorter the skirt.
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According to Harris Interactive, 70% of men and 57% of women shower daily.
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