U.S. SPENDING IN IRAQ

1. Spent & Approved War-Spending - About $800 billion of US taxpayers' funds spent or approved for spending through mid-2009. In April 2009, President Obama announced that he will seek an additional $76 billion for the wars in Iraq and Afghanistan.
2. U.S. Monthly Spending in Iraq - $12 billion in 2008
3. U.S. Spending per Second - $5,000 in 2008 (per Senate Majority Leader Harry Reid on May 5, 2008)
4. Cost of deploying one U.S. soldier for one year in Iraq - $390,000 (Congressional Research Service)
5. Lost & Unaccounted for in Iraq - $9 billion of US taxpayers' money and $549.7 milion in spare parts shipped in 2004 to US contractors. Also, per ABC News, 190,000 guns, including 110,000 AK-47 rifles.
6. Missing - $1 billion in tractor trailers, tank recovery vehicles, machine guns, rocket-propelled grenades and other equipment and services provided to the Iraqi security forces. (Per CBS News on Dec 6, 2007.)
7. Mismanaged & Wasted in Iraq - $10 billion, per Feb 2007 Congressional hearings
8. Halliburton Overcharges Classified by the Pentagon as Unreasonable and Unsupported - $1.4 billion
9. Amount paid to KBR, a former Halliburton division, to supply U.S. military in Iraq with food, fuel, housing and other items - $20 billion
10. Portion of the $20 billion paid to KBR that Pentagon auditors deem "questionable or supportable" - $3.2 billion
11. Number of major U.S. bases in Iraq - 75 (The Nation/New York Times)

Read further the statistic here.