Some countries were not included for various reasons, primarily the lack of necessary data. 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.
Try to answer this question if possible (otherwise reply "unanswerable"): What is the main reason that countries were excluded from the 2014 report?
lack of necessary data