Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
By weight, Bone is five times stronger than steel.
417
The Japanese, on average, are the shortest people.
320
Nearly half of the entire world's adult population has never drunk alcohol.
12
Dutch, on average are the tallest people.
187
Babies crawl an average of 200m a day.
212
40% of people who are rejected in romantic love slip into clinical depression.
72