40% of people who are rejected in romantic love slip into clinical depression.
72
Two in five people in the world marry their first love.
270
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Nearly half of the entire world's adult population has never drunk alcohol.
12
Babies crawl an average of 200m a day.
212
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160
There are more than 150 million sheep in Australia, and only some 20 million people.
247