I think that China, the US, and the EU, even though they are often compared to each other are each of them such a vast and differentiated geographical entity th

I think that China, the US, and the EU, even though they are often compared to each other are each of them such a vast and differentiated geographical entity that often times general statements fail to hit their mark. Like if I average the EU28 total I get 3.48 which is just below China and well below the US because there is the infrastructure of Bulgaria and Lithuania (on offence guys!) at the low end and Germany and Sweden at the high end. I am sure the infrastructure of Western China is a night-and-day difference to the coastal South and East. I imagine the US is a lot more uniform.