Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
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Babies crawl an average of 200m a day.
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On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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Forty percent of American adults cannot fill out a bank deposit slip correctly.
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40% of people who are rejected in romantic love slip into clinical depression.
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