By weight, Bone is five times stronger than steel.
417
Nearly half of the entire world's adult population has never drunk alcohol.
12
In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The Japanese, on average, are the shortest people.
320
Babies crawl an average of 200m a day.
212
There are about 255 babies born worldwide every minute.
46