Total sales volume fell 3 percent in 2013 to 8.9 billion cases, the ninth straight year of decline, according to Beverage Digest. That compares with declines of 1.2 percent in 2012 and 1 percent in 2011.

By company, Coca-Cola Co (>> The Coca-Cola Company) and Dr Pepper Snapple Group Inc (>> Dr Pepper Snapple Group Inc.) each gained market share, according to Beverage Digest, while PepsiCo Inc's (>> PepsiCo, Inc.) lost market share.

(Reporting by Phil Wahba in New York; Editing by David Gregorio)