How many people in Japan migrated to the Northeast during World War II?

1936 On August 25th, Japanese immigration to the northeast of China was listed as one of the "seven national policies", and it was planned to implement a huge immigration aggression plan to the northeast of China in 1937 and 10. According to Japan's estimation, the population of the puppet Manchukuo will increase from 35 million at that time to 50 million in 30 years, and if the Japanese want to become one of the five major nationalities in Manchukuo, their population must account for at least one tenth, that is, 5 million. According to Japanese historical records, during the Puppet Manchukuo period, there were 6,543,800+3,000 Japanese immigrants in Heilongjiang alone.