Since the end of WWII. I don't know how much anymore, though it probably wouldn't be too hard to find out. It would seem like one of those things that got started, and nobody has ever tried to stop it. Go figure. It's just money. What the heck? Of course, there are several other countries we have been doing the same thing with, but we are those arrogant Americans that don't do anything to help the world. How pathetic! Yes, we are arrogant, but we earned the right, and we do help the world more than any other country ever has or can!!!

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