What is the most alcohol consuming country?

According to Guinness Book of World Records:

1. Luxembourg

According to Wikipedia:

1. Portugal

2. Luxembourg

References to back the answers:

According to these sites: Based on Wikipedia, Portugal and Luxembourg are the top 2 countries (in that order) for alcohol consumption per capita supposedly based on information from the World Health Organization (WHO). Based on Guinness Book of World records, Luxembourg holds the overall record.