The drinking of tea in the United States was largely influenced by the passage of the Tea Act and its subsequent protest during the American Revolution. Tea consumption sharply decreased in America during and after the Revolution, when many Americans switched from drinking tea to drinking coffee, considering tea drinking to be unpatriotic. The American specialty tea market quadrupled in the years from 1993 to 2008, now being worth $6.8 billion a year. Specialty tea houses and retailers also started to pop up during this period.