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

In the Alcohol average daily consumption rating Belgium holds position #74 ²⁰¹⁶ out of 189 and Serbia is #52 out of 189 ²⁰¹⁶.
Position of Belgium 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 Belgium 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.

   Belgium	'Both sexes' value is	34.3
   Serbia	'Both sexes' value is	39.9