I want to know the answer to the following question:
How much was 1 US Dollar worth in Iranian Rials in early 2012?
All the background I'm provided with is that "Sanctions have led to a steep fall in the value of the rial, and as of April 2013 one US dollar is worth 36,000 rial, compared with 16,000 in early 2012.". Is that enough to answer the question?