By weight, Bone is five times stronger than steel.
417
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
The Japanese, on average, are the shortest people.
320
Babies crawl an average of 200m a day.
212
In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
40% of people who are rejected in romantic love slip into clinical depression.
72
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155