The U.S. economy is immense. In 1998 it included more than 270 million consumers and 20 million businesses. U.S. consumers purchased more than $5.5 trillion of goods and services annually, and businesses invested over a trillion dollars more for factories and equipment. Over 80 percent of the goods and services purchased by U.S. consumers each year are made in the United States; the rest are imported from other nations. In addition to spending by private households and businesses, government agencies at all levels (federal, state, and local) spend roughly an additional $1.5 trillion a year. In total, the annual value of all goods and services produced in the United States, known as the Gross Domestic Product (GDP), was $9.25 trillion in 1999.