How to determine the proportion of university insurance research?

The vast majority of universities belong to the Ministry of Education, and the research and development policy of the Ministry of Education is that Tsinghua Peking University is not limited by the number of places, and the number of schools insured is as large as possible. In the past two years, the average amount of insurance granted to Beijing Foreign Studies University is about 50%, and the Ministry of Education of other better 985 colleges and universities has set it at 30% (internal insurance plus external insurance). Fudan was handed over to Zhejiang University, Nankai University, Jida University, Harbin Institute of Technology, Wuda University, Xi 'an Jiaotong University, Jiaotong University, Beihang University and Tongji University. In Fudan in the south, internal insurance is generally called direct promotion. Schools encourage students to study in their own universities, and universities in the north, such as Harbin Institute of Technology and Jilin University, are the mainstream. Most students like to be sent to Tsinghua Peking University Chinese Academy of Sciences. The distribution ratio of internal insurance and external insurance is determined by each school, but the external insurance shall not be less than 5% of the number of students, which is the off-line stipulated by the Ministry of Education. The slightly worse 985 is about 20%, the proportion of 2 1 1 university is even less, the proportion of almost less, and so on. There are two special universities, namely the University of Science and Technology of China in Hefei and the University of Chinese Academy of Sciences in Beijing. These two universities do not belong to the Ministry of Education, but to the Chinese Academy of Sciences. Therefore, students of the Chinese University of Science and Technology can only apply to universities and schools of the Chinese Academy of Sciences, and the average number of places is about 40%-50%. The University of Chinese Academy of Sciences, that is, the National University of Science and Technology, enrolled 300 undergraduates this year, which is the first year to enroll undergraduates. So there is no data on graduate insurance before, but according to