Agriculture, dominated by banana production, is the most important sector of this lower-middle-income economy. The services sector, based mostly on a growing tourist industry, is also important. The government has been relatively unsuccessful at introducing new industries, and the unemployment rate remains high at 19.8% in the 1991 census to 15% in 2001. The continuing dependence on a single crop represents the biggest obstacle to the islands' development as tropical storms wiped out substantial portions of bananas in many years.