“The daily smoking rate dropped significantly between 2010 and 2013, from 15.1% to 12.8% among people 14 or older.”
http://www.aihw.gov.au/media-release-detail/?id=60129548108

Could this be to do with our plain packaging laws which the big tobacco companies are fighting hard against?

PS: “highlights” from the survey are here:
http://www.aihw.gov.au/alcohol-and-other-drugs/ndshs/