You mean 13? You have to count the net contributors as well or its very misleading...

But that's not really meaningful in a "largest economy" point of view.

WTF is up with Luxembourg on that graph?

It is a tax haven, with one of the highest GDP / person in the world, why is it, by magnitudes, the biggest recipient of EU largesse / person??!

Exactly. Which proves that people who keep saying that Poland's growth is only due to EU's money should finally stop.

Another argument: Poland's GDP had already been growing at a similar pace before it joined the EU (but after it got rid of communism).