Trade is another strong sector of the city. In 2003, Hanoi had 2,000 businesses engaged in foreign trade, having established ties with 161 countries and territories. The city's export value grew by an average 11.6 percent each year from 1996 to 2000 and 9.1 percent during 2001–2003.  The economic structure also underwent important shifts, with tourism, finance, and banking now playing an increasingly important role. Hanoi's traditional business districts are Hoàn Kiếm, Hai Bà Trưng and Đống Đa; and newly developing Cầu Giấy, Nam Từ Liêm, Bắc Từ Liêm, Thanh Xuân and Hà Đông in the west.