[Forlien]

http://www.businessinsider.com/americans-are-drinking-less-s... says 41 gallons per capita in 2014. Converted, it's 0.4252 liters per day, so a liter per day is more than double the average.

[ericdykstra]

That's per capita; not everyone drinks soda. A liter per day could certainly be the average for soda drinkers.

[mark-r]

I wonder what the difference is between mean and median in this case?

[wmil]

The standard deviation must be pretty high. There are lot people who drink almost no soda.