Ielts Writing Task 1_Check this report for me, please

Hello eveybody, I have just finished this report. Please help me to correct the mistakes and improve my ability. Thank you so much!. Here is the report:

The graph illustrates the amount of third year foreign students join Computer Science class at a Canadian college.
Overall, it is obvious that the number of male students who study Database core is higher than the number of female students. In contrast, the Networking core is much more preferred by girls than by boys.
In the Networking class, the China has the largest enrolled students (8) and France has the smallest (1). Meanwhile, Sri lanka, Singapore and Malaysia have 5, 6, 7 students respectively. For each nationality, the females choose Networking outnumber the males, except in the case of French students with 1 males and 1 females.
In the database class, the China continues to lead in the number of students (9). And smallest number of students simultaneously belongs to France and Malaysia (4). It is noticeable that all of the French female students take the Database core option. In the contrary, there are a few girls in other nationality choose this course; only 1 Sri Lankan, Malaysian and 2 Singapore, Chinese.

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