Article History
Received: 9 July 2018
Accepted: 20 November 2018
First Online: 5 December 2018
Ethics approval and consent to participate
: Data for SDAC were collected by the ABS under the provisions of the <i>Census and Statistics Act (CSA) 1905</i>. Prior to field operations, the survey was submitted to the Australian Privacy Commissioner and tabled in parliament. Confidentiality of these data are guaranteed under the Act and information was provided freely from respondents. Confidentialised data were made available to the authors for this study through the ABS and Universities Australia agreement.
: N.A.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.