"There was a significant increase in the proportion of people who were offered or had the opportunity to use cocaine in 2013 (from 4.4% in 2010 to 5.2%). However, there was no change in the proportion using cocaine in the previous 12 months (2.1%) (online tables 5.3 and 5.12). Recent users also used cocaine less often in 2013, with a lower proportion using it every few months (from 26% to 18.0%) and a higher proportion using it once or twice a year from 61% to 71% (Online Table 5.11).
"Of people aged 14 or older, 8.1% (or 1.5 million) had used cocaine in their lifetime, and 2.1% (or about 400,000 people) had used it in the previous 12 months (Online Table 5.5). Cocaine use was highest among:
" males, who were twice as likely as females to have used cocaine in the preceding 12 months (2.9% and 1.4%, respectively for those aged 14 or older)
" those aged 30–39, who were most likely to have ever used cocaine (16.2%), particularly males (19.6%) (online tables 5.7 and S5.20)
" people aged 20–29, both males (7.3%) and females (4.6%), were most likely to have used cocaine in the previous 12 months."
Australian Institute of Health and Welfare, "National Drug Strategy Household Survey detailed report 2013." Drug statistics series no. 28., Cat. no. PHE 183 (Canberra: AIHW, Nov. 2014), p. 63.