It's not Democracy. It's not Nuclear Energy. That were my two first thoughts. But it does have something to do with Industry, as USA and Germany are the top nations. I cannot see Chemicals as well, as imo Switzerland would be too bright for that (Novartis, Roche), but of course, I'm not sure where those two have their production, could be Sri Lanka... ;-) EDIT: Funny, looking at the map based on USA/Germany, I had an idea for another map and then tried looking for it on google and the map was the first one to come up, though it's something slightly different than I would have guessed. Of course I'm now not gonna say it, but it is a good map, LAnkou, chapeau!