I'm not sure if this research Data shows coronavirus can only be controlled if 8 out of 10 Australians stay home - ABC News (Australian Broadcasting Corporation) has already been posted in this or a similar thread
https://www.abc.net.au/cm/lb/1208623...ponse-data.png
As of 26 March, Australia is sitting at >2800 cases of coronavirus, so either physical distancing is less than 70% compliance, or was begun too late in the outbreak.
Not taht it makes much difference either way.