Japan still remains as the largest bitcoin exchange market with over 51 percent of the market share, analysts stated that the crackdown on small exchanges have had an impact on the global cryptocurrency market
Yes it is Japan, you are correct as the Japan is largest share in transaction in cryptocurrency.
As Japan legalize bitcoin as cryptocurrency, we are hoping other developed countries will like join in Japan and embrace the technology it can bring.
As it is inevitable to not use the technology of bitcoin and blockchain has.