A source for stats on Afghanistan

For anyone with a bent for statistics, the Afghanistan Index: Tracking Variables of Reconstruction and Security in Post-9/11 Afghanistan, is a great resource. Published by the Brookings Institution, it contains detailed stats on security, governance and rule of law, economic and quality of life indicators and polling and public information.
It also complements similar sets of data for both Iraq and Pakistan.
So if you want to find out the cause of death of US troops in Afghanistan, annual recruitment figures for the Afghan Army, where Afghans choose to take different types of legal case, annual poppy cultivation, Afghanistan's rank in Transparency International's annual corruption perceptions index, annual inflation, the number of telephone users, the results of various public opinion surveys and a lot more besides, this is the place for you.