I want to know the answer to the following question:
What is the main reason that countries were excluded from the 2014 report?
All the background I'm provided with is that "The following United Nations Member States were not included in the 2014 report: North Korea, Marshall Islands, Monaco, Nauru, San Marino, Somalia, India, Pakistan, South Sudan, and Tuvalu.". Is that enough to answer the question?
Answer: no