It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Half of all Americans over the age of 55 have no teeth.
39
About 2/3 of American men prefer boxers to briefs.
83
Women who play video games tend to have more sex and be happier with their relationships than those who don’t.
18
If you're over 100 years old, there's an 80% chance you're a woman.
143
On average a woman has 4 sexual partners in her lifetime.
-143
The average person falls asleep in seven minutes.
115
Americans did not commonly use forks until after the Civil War.
82