How many students are there in the fourth grade of the Central Primary School of Yong'an Town, Dinghu District, Zhaoqing City, Guangdong Province, China?

There are more than 100 students in the fourth grade of the Yongan Town Central Primary School in Dinghu District, Zhaoqing City, Guangdong Province, China. The population distribution of Yongan Town Central Primary School in Dinghu District, Zhaoqing City, Guangdong Province, China is as follows: The school currently has 21 teaching classes, 1,007 students, and 51 full-time teachers, including 37 senior primary school teachers, accounting for 72.5%, and 45 people with a college degree or above. Accounting for 88.2%, the teacher qualification rate is 100%, and there are currently 3 district-level famous teachers.