To estimate the national trend in per capita consumption (PCC) of alcohol for  Australians aged 15 years and older for the financial years 1990–91 to 2008–09. 
With the use of data obtained from  Australian Bureau of Statistics’ catalogues and World Advertising Research  Centre reports, three alternative series of annual totals of PCC of alcohol for  the past 20 years (1990–91 to 2008–09) were estimated based on different  assumptions about the alcohol content of wine. For the “old” series, the alcohol  content of wine was assumed to have been stable over time. For the “new” series,  the alcohol content of wine was assumed to have increased once in 2004–05 and  then to have remained stable to 2008–09. For the “adjusted” series, the alcohol  content of wine was assumed to have gradually increased over time, beginning in  1998–99. Linear trend analysis was applied to identify significant  trends.
The new and adjusted series of annual  totals of PCC of alcohol showed increasing trends; the old series was  stable.
Until recently, official national annual  totals of PCC of alcohol were underestimated and led to the mistaken impression  that levels of alcohol consumption had been stable since the early 1990s. In  fact, Australia’s total PCC has been increasing significantly over time because  of a gradual increase in the alcohol content and market share of wine and is now  at one of its highest points since 1991–92. 
This new information is consistent  with evidence of increasing alcohol-related harm and highlights the need for  timely and accurate data on alcohol sales and harms across  Australia.
 
