A look at some of the factors that determine the quality of life for everyday Iraqis:
January 2004: 30-45 percent
January 2009: 23-38 percent
Prewar: 2.58 million barrels/day
Feb. 28: 2.32 million barrels/day
Prewar: 12.9 million people had potable water.
Jan. 15: 21.2 million people have potable water.
Prewar: 6.2 million people served.
Dec. 31: 11.3 million people served.
Prewar land lines: 833,000
Jan. 5: 1,300,000
Prewar cell phones: 80,000
Jan. 5: An estimated 14.7 million
September 2003: 4,900
Jan. 5: 688,410
Prewar nationwide: 3,958 megawatts. Hours per day (estimated): 4-8
March 10 nationwide: 5,410 megawatts. Hours per day: 15.6.
2008: Some 195,000 internally displaced Iraqis were able to return home. As of November, there were at least 2.8 million people still displaced inside Iraq.
Prewar: 500,000 Iraqis living abroad.
January: Close to 2 million, mainly in Syria and Jordan. (Some 25,000 refugees were able to return home in 2008.)
SOURCES: The Associated Press, others
War In Iraq
A by-the-numbers look
U.S. troop levels
Highest number: 166,000 in October 2007
Countries sending troops at the start of war: 31, including the United States
Today: 4 — United States, United Kingdom, Australia, Romania
Number of U.S. contractors in Iraq: 190,000 in August 2008
Total trained and equipped, July 2005: About 171,300
Total trained as of October 2008, regardless of active status: 561,159
Troops killed as of March 17: At least 4,259, including 61 with ties to South Carolina
States with the highest number of deaths: California, 457; Texas, 402; Pennsylvania, 192; Florida, 188; New York, 182; Ohio, 174; Michigan, 156; Illinois, 151
Wounded in action as of Feb. 28: At least 31,102
Private contractors killed as of Dec. 31: 1,306
Killed as of March 17: At least 307
Killed since the 2003 invasion: 91,121, according to the Iraq Body Count database
Cost of the war
Congress has approved more than $657 billion so far for the Iraq war, according to the Congressional Research Service.
In August 2008, the Congressional Budget Office projected that additional war costs for the next 10 years could range from $440 billion to $865 billion.
SOURCE: The Associated Press, others