Babies crawl an average of 200m a day.
212
Two in five people in the world marry their first love.
270
On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
57
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
There are more than 150 million sheep in Australia, and only some 20 million people.
247
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
By weight, Bone is five times stronger than steel.
417