The pie charts illustrate the class sizes in primary schools across four Australian states: New South Wales, South Australia, the Australian Capital Territory, and Western Australia in the year 2000.
From the charts, it is clear that classes with 21-25 students represent the highest percentage in almost all states, while classes with fewer than 21 students were the most common in South Australia. Conversely, classes with over 29 students make up the smallest proportion across the states.
In New South Wales, 37% of primary classes had between 21 and 25 students, followed closely by classes with a medium-large size, which accounted for 33%, and the smallest class sizes at 26%. In South Australia, the most popular class size was those with a maximum of 20 students, comprising 33%, and the figure for classes sized 26-30 students was 28%. Notably, classes containing fewer than 21 students were the most common in this state at 36%. Both New South Wales and South Australia had the same figure, 4%, for primary-level classes with at least 30 students.
In the Australian Capital Territory and Western Australia, classes sized 21-25 students were also the most prevalent, making up 51% and 42% respectively. In the Australian Capital Territory, classes with a maximum of 21 students constituted 38%, while only 10% of primary-level classes had between 26-30 students. In Western Australia, however, there was a differing distribution, with 27% represented by medium-large class sizes and 26% by the smallest classes. Additionally, the percentage of classes containing at least 30 students in Western Australia was higher than in the Australian Capital Territory, accounting for 5%.