Key data for the United States of America

Head of state: Barack Hussein Obama
Head of government: Barack Hussein Obama
Type of state: federal republic
Land area: 9'629'091 km2
Capital: Washington D.C.
Population: 304.8 million
Language/s: English, Spanish
Currency: US dollar (USD)
Gross domestic product (GDP) 2008: USD 14'334.03 billion
Change over previous year: +1.57%
Per capita GDP 2008: USD 47'025.30
Swiss colony 2008: 74'862 people
Swiss exports 2008: CHF 20'726.8 million
Change over previous year: +3.3%
Swiss imports 2008: CHF 11'437.2 million
Change over previous year: +2%