"Australia’s consumption of opioid analgesics is ranked 10th internationally; North America ranks first. Per capita consumption of oxycodone and morphine preparations in Australia is relatively high (ranked third and fifth respectively, internationally); Canada ranks first for oxycodone and Austria first for morphine.1 Consumption levels in Australia are still well below the top-ranking countries. Previous research in Australia has documented increases in the number of prescriptions for morphine in the late 1990s2,3 and, more recently, increases in consumption of oxycodone.4"

Source

Amanda Roxburgh, Raimondo Bruno, Briony Larance and Lucy Burns, "Prescription of opioid analgesics and related harms in Australia," Medical Journal of Australia, 2011; 195 (5): 280-284. doi: 10.5694/mja10.11450
https://www.mja.com.au/journa…
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