According to our research in the U.S., the most consumed tea is Black tea, with a whopping 95 % of this type of tea consumed. Why just Black tea? Drinking Black tea comes from the World War II era. It was hard to procure tea from Japan and China, which brought the opportunity to have the tea from the British. The British procured their tea from the crops in India. Most of India’s tea was a black tea; Darjeeling; Nilgiri; Assam; etc.
Reference: “The Little Black Book of Tea” by Mike Heneberry