Context: Some countries were not included for various reasons, mainly the unavailability of certain crucial data. The following United Nations Member States were not included in the 2011 report: North Korea, Marshall Islands, Monaco, Nauru, San Marino, South Sudan, Somalia and Tuvalu.

Question: What is the main reason that countries were excluded from the 2011 report?
Answer: unavailability of certain crucial data

Question: Which East Asian dictatorship was excluded from the 2011 report?
Answer: North Korea

Question: What is not the main reason that countries were excluded from the 2011 report?
Answer: Unanswerable

Question: What is not the main reason that countries were excluded from the 2012 report?
Answer: Unanswerable

Question:  Which East Asian dictatorship was excluded from the 2012 report?
Answer: Unanswerable