When Australian school students aged 12-17 years drink alcohol, does the amount consumed per week differ by age?

Among Australian school students aged 12-17 years who consumed alcohol in the past week, the average number of drinks consumed over the week increased with age: 12-15 year olds consumed an average of 4.7 drinks, while 16-17 year olds consumed an average of 6.8 drinks.  

Source: Cancer Council Victoria (2016). Australian secondary school students' use of tobacco, alcohol, and over-the-counter and illicit substances in 2014.

Please note: These data differ from quantity of consumption data presented for young people in the general population due to differences in measures. In the secondary students’ survey (ASSAD), data measures indicate the average amount of alcohol consumed over a week. In the general population survey (NDSHS), data measures indicate the amount of alcohol usually consumed on a single drinking occasion.