I liked this infographic, so I reposted here courtesy of Visually.
It is beautiful and impactful.
It is an infographic though: I would love access to the data so we can see it simply for ourselves.

The main thing is that someone has put a lot of work into making this information impactful and easy to understand. The process of design is really hard and you have to be able to put yourself in someone elses’s mind.