Traveling to USA

According to the International Monetary Fund, the United States GDP constitutes 20 percent of the gross world product. Only the collective GDP of the European Union is greater.
The United States is the largest importer of goods and second largest exporter. Canada, China, Mexico, Japan, and Germany are its top trading partners. The leading export commodity is electrical machinery, while vehicles constitute the leading import. The economy is postindustrial, with the service sector contributing over 75 percent of GDP. The leading business field by gross business receipts is wholesale and retail trade; by net income it is finance and insurance. The United States remains an industrial power, with chemical products the leading manufacturing field. It is the world's number one producer of electrical and nuclear energy, as well as liquid natural gas, aluminum, sulfur, phosphates, and salt. Agriculture accounts for only 1 percent of GDP but 60 percent of the world's agricultural production.