PISA schooling year gaps between different groups, 2015

*Provincial/remote students and metro student gap is 1 to 1.5 years, 1.5 years is the high end average.

Source: Thomson, S., De Bortoli, L., and Underwood, C. (2016) PISA 2015: A first look at Australia’s results. Camberwell, Victoria: Australian Council for Educational Research.