20 19 years, the national average score of the second year of mathematics for postgraduate entrance examination is 7 1.87. This data comes from the statistics after the end of the postgraduate entrance examination in 20 19, which reflects the average scores of all the candidates who took the second math exam that year. But this data does not mean that everyone can reach this score, but that the average score of all the people who took the exam is 7 1.87.