Statement:
An average person in Costa Rica drinks less alcohol than in Malawi

In the Alcohol average daily consumption rating Costa Rica holds position #105 ²⁰¹⁶ out of 189 and Malawi is #81 out of 189 ²⁰¹⁶.
Position of Costa Rica is better than position of Malawi.
Both countries holds average positions in the "Alcohol average daily consumption" rating. So Both sexes is an average for both Costa Rica and Malawi, 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.

   Costa Rica	'Both sexes' value is	28.1
   Malawi	'Both sexes' value is	33.4