This issue of the Drug Trends Bulletin, produced by the Kirby Institute at UNSW, reports national trends in ANSPS respondent characteristics over the 20 year period, 1995 to 2014.
The IDRS October bulletin, Key findings from the 2015 IDRS: a survey of people who inject drugs, is available at https://ndarc.med.unsw.edu.au/resource/key-findings-2015-idrs-survey-people-who-inject-drugs.