Actually i'm start thinking about that since yesterday, because yesterday when the price of bitcoin decrease, China bitcoin market like Huobi is the first one that make bitcoin's price fall down. Because of that i'm thinking that China have a big affect into bitcoin and the price too. I don't know is it right or not, but it's my opinion.
Most of bitcoin is traded using chinese yuan. China has really big domination of bitcoin. But I am sure that it will not forever. Becouse big country lime USA, Russia and Japan is try to be big player of bitcoin too.