|Capital||Washington, D.C 38°53′N 77°01′W|
|Largest City||New York City|
|Government||Federal presidential representative democracy under constitutional republic|
|Area Total||9,826,675 km2 3,794,101 sq mi|
The United States of America (USA) known as United States (U.S.), America, or simply the States, is a federal republic consisting of 50 states, 16 territories, and a federal district. It is one of the world's most multicultural nations, the result of immigration from other countries over the world. The geography and climate of the United States is also extremely diverse, and it is home to a wide variety of wildlife. In 1507, the German cartographer Martin Waldseemüller produced a world map on which he named the lands of the Western Hemisphere "America" after the Italian explorer and cartographer Amerigo Vespucci (Latin: Americus Vespucius). The first documentary evidence of the phrase "United States of America" is from a letter dated January 2, 1776, written by Stephen Moylan, Esq., George Washingon's aide-de-camp and Muster-Master General of the Continental Army. Addressed to Lt. Col. Joseph Reed, Moylan expressed his wish to carry the "full and ample powers of the United States of America" to Spain to assist in the revolutionary war effort.
The United States is a developed country and has the world's largest national economy, with an estimated Gross domestic product(GDP) in 2013 of $16.7 trillion – 23% of global nominal GDP and 19% at purchasing-power parity. Americans have the highest average household and employee income among OECD nations, and in 2007 had the second highest median household income. According to the Census Bureau real median household income was $50,502 in 2011, down from $51,144 in 2010.
The United States is the world's oldest surviving federation. It is a constitutional republic and representative democracy, "in which majority rule is tempered by minority rights protected by law".The government is regulated by a system of checks and balances defined by the U.S. Constitution, which serves as the country's supreme legal document. For 2012, the US ranked 21st on the Democracy Index and 19th on the Corruption Perceptions Index.
US Trade data is set of Statistical report of export and import shipments of USA.
Data are compiled in terms of commodity classification, quantities, shipping weights, method of transportaion (air or vessel), state of (movement) origin, customs district, customs port, country of destination, and whether contents are domestic goods or exports.
Data are compiled in terms of commodity classification, quantities, importers, exporters, shipping weights, methods of transportation , and market share, country of origin, customs district, customs port.
Major exports of US : Petroleum oils, refined (4%), Electronic integrated circuits (3%), Cars (3%), Turbojets, turbo propellers and other gas turbines (3%), Aircraft, spacecraft & launch vehicles (3%)
Major trade partners of US (exports) : Petroleum oils, crude (13%), Cars (6%), Automatic data processing machines (4%), Petroleum oils, refined (3%), Medicaments, packaged (3%)
Major trade partners of US (exports) : Canada (17%), Mexico (12%), China (8%), Japan (5%), Germany (5%)
Major trade partners of US (imports) : China (18%), Canada (15%), Mexico (12%), Japan (6%), Germany (5%)