Why is Hong Kong's financial industry so developed?

Perhaps it was when Britain colonized Hong Kong that it began to have some influence. At that time, it was the time when the British financial center controlled international finance and the international financial center was about to move to new york, but there was no serious racial persecution or resource plunder in Hong Kong. At that time, the British business plundered only capital, but the colonists brought construction support to Hong Kong, which was very important. Later, Chinese mainland's "one country, two systems" provided great convenience for free trade and independent economic development. This phenomenon continues to exist to some extent. In fact, some netizens answered well, free trade policy, no foreign exchange supervision, and so on ~ this is a market economy system that is a big step ahead of the mainland. The control of market resources is in the hands of economic entities rather than management and superstructure. Of course, a good geographical location is also one of the important auxiliary factors, but it is definitely not the most important. It can be said that Hong Kong has experienced and absorbed extremely valuable financial development experience from the era of British colonial rule. Later, the peaceful evolution of Hong Kong's return won great political and economic support from the mainland, and made full use of its good geographical advantages in the whole development process, eventually forming one of the largest financial centers in Asia ~ ~ ~ Finally, if the landlord has the opportunity to know about the GDP of Hong Kong's financial industry and other industries over the years, I believe these data will give me some supplements and give you some intuitive tips.