Statement:
An average person in Poland drinks less alcohol than in Serbia

In the Alcohol average daily consumption rating Poland holds position #61 2016 out of 189 and Serbia is #52 out of 189 2016.
Position of Poland is better than position of Serbia.
Both countries holds average positions in the "Alcohol average daily consumption" rating. So Both sexes is an average for both Poland and Serbia, 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.
    Poland 'Both sexes' value is 37.0
    Serbia 'Both sexes' value is 39.9