The members of the Group of Eight, or G8, are Canada, France, Germany, Italy, Japan, Russia, the United Kingdom and the United States.
The eight members meet once a year at Heads of State and Government level.
France, the United States and Russia are represented by their Heads of State, whereas the United Kingdom, Germany, Japan, Italy and Canada are represented by their respective Heads of Government.
United States of America
Area: 9,629,091 km2
Population: 299.4 million (2006) 
Annual population growth rate: 0.9% (2006)
Capital: Washington D.C.
Official language: English
Form of government:
Presidential federal republic
President Barack Obama
G8s held to date:
Sea Island, Georgia (2004)
Denver, Colorado (1997)
Houston, Texas (1990)
Williamsburg, Virginia (1983)
 ONU - World Population Prospects: The 2006 Revision
 Estimates for 2007 published by the International Monetary Fund, World Economic Outlook Database, October 2008.
 PPP (Purchasing Power Parity)
Estimates 2007 published by the International Monetary Fund, World Economic Outlook Database, October 2008.
For further information on the calculation of purchasing power consult http://en.wikipedia.org/wiki/Purchasing_power_parity
 Reprocessing of the figures published by theb International Monetary Fund, World Economic Outlook Database.