File talk:Afghanistan opium poppy cultivation 1994-2007b.PNG

Where is the source for this graphic? It makes some bold claims that I cannot research.

    Not to mention what unit of measure is being depicted here.  Pounds, Kilos, ounces,
    stones?  — Preceding unsigned comment added by 98.182.36.252 (talk) 21:54, 17 February 2014 (UTC)