Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Babies crawl an average of 200m a day.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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By weight, Bone is five times stronger than steel.
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There are about 255 babies born worldwide every minute.
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40% of people who are rejected in romantic love slip into clinical depression.
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Nearly half of the entire world's adult population has never drunk alcohol.
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