Which province has the largest number of mainlanders from Taiwan Province Province?

People from other provinces in Taiwan Province Province are not from Fujian, but from Sichuan, Shandong, Jiangsu, Zhejiang, Henan, Anhui, Hubei, Hunan and Yunnan. Why not from Fujian? This needs to be explained In Taiwan Province Province, mainlanders mainly refer to mainland residents who migrated to Taiwan Province with the broadcast of the National Government in 1949. Most Fujian people's congresses came to Taiwan with Zheng Chenggong in the late Ming and early Qing dynasties, with a history of more than 350 years. Taiwan Province Province has been developed on a large scale. The second high incidence period was in the middle and late Qing Dynasty, when Fujian coastal residents moved to Taiwan Province again. In a word, all the people who came to Taiwan before 1949 were from our province, and all the people who came to Taiwan later were mainlanders. But recently, it has stopped being called "new resident" instead of "". . . . . . . . Just like when many people from the Central Plains moved to Fujian and Guangdong in the Tang and Song Dynasties, they are now called Fujian people, not Henan people. . . . .