Despite the rapid growth in the Asia-Pacific region, the size of the U.S. market, a bellwether for the global planting market, remains large. According to NBJ, total sales of herbal dietary supplements in the U.S. reached $9.602 billion in 2019, spending $750 million more than in 2018 and an increase of 8.6% from 2018. Since 2000, the US market has experienced negative growth only in 2003 and 2010. The overall trend is growing, with an increase rate of about 5%, and the growth rate is expected to exceed 10% in 2020.