I found this chart from the Economist pretty interesting: http://media.economist.com/images/images-magazine/2010/34/ST/201034STC150.gif http://media.economist.

I found this chart from the Economist pretty interesting: http://media.economist.com/images/images-magazine/2010/34/ST/201034STC150.gif http://media.economist.com/images/images-magazine/2010/34/ST... Aside from the giant spike when China decided to blow up a satellite, it seemed to be leveling out...