Different sources. There are many reasons why the huge tide is different from the data in Guo Taian's annual report. The most likely reason is that the data are different, or different statistical methods will lead to different data in different time periods. Guotai 'an provides comprehensive solutions covering more than 70 disciplines, including information platform, simulation software, educational equipment, educational resources and skills training, for educational institutions and financial institutions such as application-oriented undergraduate, secondary vocational and kindergarten.