A question on Iraq's elections

I just read in The Note that the results for Iraq's elections won't be known for at least two weeks. Can anyone explain to me why that is the case?

Issandr El Amrani

Issandr El Amrani is a Cairo-based writer and consultant. His reporting and commentary on the Middle East and North Africa has appeared in The Economist, London Review of Books, Financial Times, The National, The Guardian, Time and other publications. He also publishes one of the longest-running blog in the region, www.arabist.net.