I don't know the exact number. They did have a bunch of lawyers to figure out how to get that 'tax break'. If I remeber correctly that department has about 900 people. Now you could argue 'What do they add directly to their products?" Well then you'd be calling them a bunch of leaches. Not very nice of you.
I think the US has one of the highest corperate tax rates. But, when all the loop-polls are factored in, then the US is competative. Also, the US doesn't have the many payoffs or kick backs that other countires have.
Tom