As at March 2018, the nominal GDP measured by the ABS, for the size of the Australian economy is $1,728 billion. The structure of the Australian banking system is seen by the balance sheets of the main sectors given by APRA statistics (Quarterly ADI Performance, issued 21 June 2018) in Table 1, where all figures are in AUD billions except where stated as percentages. Authorized Deposit-taking Institutions (ADI) are regulated by APRA under Banking Act 1959.
