G20 countries spend a significant proportion of their funds on healthcare. In fact, health expenses tend to be the most costly of the three shown here. More information on how G20 countries spend their money on healthcare can be found on the health page.
Australia is at the forefront of GDP per capita among the G20 countries; the effect of population on and GDP per capita can be seen in countries like India - try zooming in!
Check out the military, health, and education pages for more insight on how Australia's average GDP per capita versus other expenses stacks up against the other countries.