Background Radiation Creation Source

Approximately how much of the 'background radiation' is from:

Nuclear Tests
Nuclear Plant Catastrophic Releases
Nuclear Plant Routine Releases
Nuclear Materials From Mining and Processing
Medical Nuclear Materials
Naturally Occuring Radioactive Materials Released By Nature

A world wide data set collection would be nice, but my primary interest is of course in the US.

Thanks

http://www.260press.com/nucle

NRC: Nuclear Radioactivity Coverup

http://www.nrc.gov/reading-rm/doc-collections/fact-sheets/bio-effects-ra...

How could the pie chart shown on the above NRC link possibly be correct. Where's the radioactive particles from 2000+ nuclear tests? (did it all vanish, becoming nonradioactive daughter products?!) Is it part of the 1/10 of 1 percent listed in industrial and occupational? Am I missing something here? Surely I must be. Did the NRC forget to include a few nuclear explosions? Would the government have paid for the cancers surrounding the tests if the radioisotopes only accounted for 0.1%? More to the point, would they have even stopped the tests if this is all the radiation they created? What a bunch of crap. One more alpahbet soup agency with about that much value. Does the NRC stand for Nuclear Radioactivity Coverup?
Anybody got any more dependable links?

0.1%: Well, with that small amount of radioisotopes from a nuclear explosion, I suppose I could stand downwind of it and to receive that amount I wouldn't even have to get onto the airplane. I wouldn't even have to go to the airport...ROFLOL
Did all the nuclear explosions in the link below leave no radioactive trace?:
http://www.youtube.com/watch?v=4r2VIN4M6QU

So I ask again:
Anybody got a link showing the amount of radiation the nuclear tests have contributed to 'background radiation'?
Any links to showing the amount of radiation the nuclear powered generating plants have contributed to 'background radiation'?

Also the NRC link states

Also the NRC link states manmade radiation is 50 % ..so looks like mankind is making earth quite radioactive.or on par to eclipse natural sources.

NRC link to the point great data on effects of exposure

That's one of the best explanations of radiation exposure I have read yet .