The most common of these is Diet Coke, along with others including Caffeine-Free Coca-Cola, Diet Coke Caffeine-Free, Coca-Cola Zero Sugar, Coca-Cola Cherry, Coca-Cola Vanilla, and special versions with lemon, lime, and coffee. Coca-Cola was called Coca-Cola Classic from July 1985 to 2009, to distinguish it from "New Coke". Based on Interbrand's "best global brand" study of 2020, Coca-Cola was the world's sixth most valuable brand.[3] In 2013, Coke products were sold in over 200 countries worldwide, with consumers drinking more than 1.8 billion company beverage servings each day.[4] Coca-Cola ranked No. 87 in the 2018 Fortune 500 list of the largest United States corporations by total revenue.[5]