In 2005, 25 percent of Americans over the age of 50 played video games, an increase from nine percent in 1999.
82
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Forty percent of American adults cannot fill out a bank deposit slip correctly.
155
There are more than 150 million sheep in Australia, and only some 20 million people.
247
By weight, Bone is five times stronger than steel.
417
Nearly half of the entire world's adult population has never drunk alcohol.
12