Statement:
An average person in Oman drinks more alcohol than in Singapore

In the Alcohol average daily consumption rating Oman holds position #131 2016 out of 189 and Singapore is #149 out of 189 2016.
Position of Oman is worse than position of Singapore.
Both countries holds average positions in the "Alcohol average daily consumption" rating. So Both sexes is an average for both Oman and Singapore, 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.
    Oman 'Both sexes' value is 19.7
    Singapore 'Both sexes' value is 6.3