Thanks very much but I am not after USA military spending...just opposite...I want to know how much money they make as a part of GDP. One could argue that they just spend but they also make and sell weaponry, planes , equipment etc.And also I see that it is not possible to find data but I would be interested how much money USA companies make thanks to supplying military complex and how many people are actually involved in working for them.Obviously it's not possible to find such data on Internet.
I am aware of this:
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"For globalization to work, America can't be afraid to act like the almighty superpower that it is. The hidden hand of the market will never work without a hidden fist. McDonald's cannot flourish without McDonald-Douglas, the designer of the F-15, and the hidden fist that keeps the world safe for Silicon Valley's technology is called the United States Army, Air Force, Navy and Marine Corps."

Thomas Friedman, New York Times, March 28, 1999  
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but as we have two group of people , one believing that military complex do generate USA economy well and other that believe that they are just spending, I wanted to find more numbers as for example how many people work in MC and how much do they earn etc.How much money they generate for USA economy?
Thanks anyway...