http://time.com/4275873/soda-consumption-30-year-low-us/ Per...

http://time.com/4275873/soda-consumption-30-year-low-us/

Per capita consumption of carbonated soft drinks is the lowest since 1985
Slumping demand for diet sodas sold by PepsiCo and Coca Cola propelled a decline for the broader industry, as overall sales of carbonated soft drinks dropped for the 11th consecutive year in the U.S.....

They are cheaper than water in some stores in the US. Here at $4+ a litre you would think there would be a combo of health, cost and societal change coming up.