How many migrants are there in Shiyan? Where do most people come from?

Shiyan is an immigrant city. It used to be a town because the second car was made here. In order to support the construction of the second automobile, the old second automobile people came from all over the country. They are heroes of the Second Automobile Company! There are not many people in Shiyan now, but most of them are heroic descendants of Laoerqi, so there is no way to say which one has the most people, only China has the most people!