Because the data analysis was done in 2022.

The Notice of the Ministry of Education on Doing a Good Job in Postgraduate Degree Awarding in the First Half of 2022 (hereinafter referred to as the Notice) issued in early March proposed that all training units should make overall plans for summer postgraduate degree awarding in accordance with the requirements of epidemic prevention and control, actively open up literature resources, and provide support for graduate students to complete their dissertations. Tutors should strengthen daily communication with graduate students and actively provide support and guidance for graduate students to study and write their dissertations through online exchanges and seminars.