80 years 2 1. The enrollment ratio of graduate students in China Ocean University is 202 1, i.e. 1 4. The enrollment ratio refers to the ratio of the number of students enrolled to the number of applicants. China Ocean University, formerly known as Qingdao Ocean University, is located in Qingdao, Shandong Province. Founded in 1924, it was renamed China Ocean University in 2002. It is a key comprehensive university directly under the Ministry of Education.