7.4%。 According to relevant public information, in 2002, the total investment in education in the United States was $745 billion, accounting for 7.4% of GDP, of which basic education accounted for 4.5% and higher education accounted for 2.9%. The capital of the United States, Washington. Located in central North America, it borders Canada in the north, the Gulf of Mexico in the south, the Pacific Ocean in the west and the Atlantic Ocean in the east.