Understanding Economic Graphics

If you're anything like me, you don't understand things. And you understand economic things even less.

Here's how I quickly get to the meat of a statistical graphic like this:

What the heck do all the colors mean? What is the highest quintile? Does "highest" mean the best or the worst? What's up with all the yellow?

Here's what you do: Find Michigan. Whatever color Michigan is corresponds with the shittiest economic condition.

 

Hope that helps.