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September 18, 2007

Fuzzy Numbers... Again
Posted by Ilan Goldenberg

OK, you would have thought that after all the heat that the Pentagon took for its inconsistent violence numbers they would have been very careful about the latest data that they issued in their September report to Congress.  But they weren’t.  There are significant inconsistencies between the numbers General Petraeus showed to Congress regarding civilian casualties and the numbers in the Pentagon’s latest reports.  Again, Petraeus’s numbers seem to make the period before the surge look worse and the numbers after the surge look much better. 

I graphed the Pentgon’s data on civilian casualties from its latest report (Pg 20).  The data is for daily casualties, which includes both wounded and killed (I only included Iraqi civilians, which is the green bar).  I converted the numbers to monthly casualties and compared it to the civilian death numbers on Page 3 of General Petraeus’s presentation to Congress.  I don’t know if the data comes from the same source.  Although, to be clear the Pentagon report data comes from the database that Petraeus himself stated was the best source of information and was verified by two U.S. intel agencies.  Petraeus’s data comes from “Coalition and Host Nation Reporting.”  I graphed everything based on eyeballing the data so the numbers are not exact.

Still, you’d expect the Iraqi civilian death numbers to track the Iraqi dead and wounded numbers and obviously civilian dead should be lower than wounded and dead combined.  Unfortunately that is simply not the case.  Three observations:

Image002

According to the MNC-I data there has been no improvement since either December (The numbers Petraeus and the Administration often cite) or February (when the surge actually began).  Why wasn’t Congress shown these numbers in the presentation by General Petraeus?  Why only the good news numbers?  Why the lack of clarity on Petraeus’s sourcing?  Especially since he himself acknowledged that the best numbers come from the MNC-I database. 

In terms of actual anomalies

Anomaly A:  Somehow in December, the month that is always cited by the Pentagon and the Administration, Petraeus’s Iraqi dead is actually greater than the MNC-I Iraqi Dead + Wounded.  That makes absolutely no sense.  You can’t have more dead than dead and wounded combined.

Anomaly B:  In the months after the surge begins Petraeus’s Iraqi dead numbers are significantly lower than the dead + wounded numbers in the Pentagon report.  This is inconsistent with the entire history of the previous year, where the numbers track closely.  The only explanation would be a dramatic increase in the wounded to dead ratio.  Perhaps there were more car bombings that injured people but didn’t kill them, as opposed to close range executions where victims do not survive.  Or maybe there is another explanation.  Still it seems inconsistent to see this major split just as the surge begins..

Image002_2 I’ve also graphed what the wounded numbers should look like based on this data (i.e. you can take the total civilian casualty numbers and subtract civilian deaths to find wounded).  Notice how in December 2006 and January 2007 the numbers are actually negative, which makes no sense at all.  By far the three highest months of wounded are March 2007, April 2007 and August 2007 – after the surge has started. 

Overall, the numbers used by Petraeus have the same effect as all the other inconsistencies.  They make the numbers right before the surge look extremely bad and the numbers during the surge look much better.  Maybe that’s just a coincidence.  But it does raise more questions.

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Comments

Negative Wounded statistics occur when people are healed of a serious injury by being hit by a sniper's bullet.

Or when a car puts more people back together than it tears apart.

http://1boringoldman.com/index.php/2007/09/18/graphs-and-graphics-the-petraeus-story/

Great post. I wish I'd seen it before I obsessed over the numbers too. I think it says that the Surge was not something to help us leave Iraq, I think Bush did it so we could STAY. At the rate things were going in 2006, the place was collapsing. From his point of view, the Surge was a success. It kept things from deteriorating to the point where we had to get out [or were thrown out]...

Bush's only fixation is on staying the course and dumping this mess in someone elses lap, so he can make a claim that it wasn't his fault - it all went to hell for the next guy. His fudged numbers show improvement after his surge, and it will be the new guy that lost Iraq for us, you watch.

very good analysis.

it was obvious that Petraeus had manipulated numbers. but this is simply betrayel.

I recreated your graph and made a post about it on my blog. In addition, though, I added numbers from all the civilian casualty sources I could find, including the UN, IBC, icasualties, etc.

One thing that rather surprised me is that both the UN and IBC counts for civilians killed are, like Petraeus' numbers, ALSO greater than the total derived from that graph released in the MNF report for December 2006. It would seem that 3 sources conflicting with the MNF data would reduce its credibility, but of course, without knowing the details - and particularly the methodology of the MNF counts - it's impossible to know if we're comparing apples-to-apples, or, if we are, if we're comparing Granny Smiths to Red Delicious.

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