Department of Justice, Home Affairs and Migration

I am seeking the following records containing: 1 How many student visas were issued each year from January 2017 to December 2024. 2 How many visas were denied and on what grounds. 3 How long is each visa issued for. 4 What is the breakdown in numbers regarding the countries the applicants were received from 5 What is the breakdown in numbers regarding what subjects were being studied (is that a question for Department of education?) 6 How many of the successful applicants are actually attending an educational institution? 7 Is there a record/ information held to confirm that all successful applicants are abiding by the rules in which the visa was issued i.e. not working more then 20hrs a week.