cannabis use in Australia
... that according to a 2007 Australian national survey covering cannabis use in Australia, one-third of the population aged 14 years or older have tried the drug at least once?
... that according to a 2007 Australian national survey covering <b id="mwF64"><a href="./Cannabis_in_Australia" id="mwF68" rel="mw:WikiLink" title="Cannabis in Australia">cannabis use in Australia</a></b>, one-third of the population aged 14 years or older have tried the drug at least once?