There should be plenty, but no official data to support because encryption is a new industry, and not many professionals to provide expertise to want to understand the investors.
Each industry, every job or investment is from scratch, the same is true of Bitcoin, from 2009 to the present, Bitcoin has gone through a difficult time, the beginning of 10,000 bitcoin in exchange for a pizza, to Now bitcoin worth $ 10,000, which is unimaginable, but also bitcoin to prove their ironclad. We believe in the future of Bitcoin and believe in the development of blockchain technology.