The four pie graphs illustrate the proportional distribution of students in classes in four Australian states, including the Australian Capital Territory, Western Australia, New South Wales, and South Australia.
Overall, classes with 21-25 students account for the largest proportion in the Australian Capital Territory and Western Australia, while classes of 20 students or fewer are the most common class size in New South Wales. By contrast, the 26-30 category was the largest in South Australia. Classes with more than 30 students are the least preferred in all four states.
Looking firstly at the Australian Capital Territory and Western Australia, the 21-25 category is the most dominant class size, making up slightly more than half and 43%, respectively. This is followed by classes with 26-30 students, with a share of 27% in the Australian Capital Territory, which is 2% lower compared to Western Australia. As for smaller classes, those with 20 students or fewer represent a quarter of the total in Western Australia, while those in the Australian Capital Territory consist of a relatively low 20%. Conversely, classes with more than 30 students comprise a minor share, at 2% and 3%, respectively.
Regarding the remaining states, the largest share in South Australia was recorded in the 26-30 category, at 44%, whereas the corresponding figure for New South Wales was considerably lower, at 27%. By contrast, classes with 20 students or fewer were more common in New South Wales, accounting for 40%, compared with 30% in South Australia. A similar, though smaller, difference can be seen in the 21-25 category, at 30% and 23%, respectively. Finally, classes with more than 30 students represented an identical and negligible 3% in both states.