Statement:
An average person in Australia drinks more alcohol than in Costa Rica

In the Alcohol average daily consumption rating Australia holds position #103 2016 out of 189 and Costa Rica is #105 out of 189 2016.
Position of Australia is worse than position of Costa Rica.
Both countries holds average positions in the "Alcohol average daily consumption" rating. So Both sexes is an average for both Australia and Costa Rica, compared to most countries of the World.

Referencies:

  1. Alcohol average daily consumption 2016 by WHO
    The countries in the rating sorted by 'Both sexes' in descending order.
    Australia 'Both sexes' value is 28.9
    Costa Rica 'Both sexes' value is 28.1