Haiti Earthquake: Who's given what?

If I've understood it correctly, this is a mashup made on Guardian's API made by someone not at the Guardian. More photos here

What's interesting about this chart, which I've never seen like this before, is the last one where they show how much money various countries pledged versus how much they actually delivered. It's something I've also wanted to see because it opens up a whole new dimension of truth to the equation. For example, Canada has pledged USD 130m to the Haiti Earthquake but they only delivered 51% of what they pledged to the 2004 Tsunami crisis.