Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 3.47126436781609 2008 3.49015507863726 2009 3.4148236679 2010 3.7093620529 2011 4.1 2012 4.2 2013 3.8 2014 3.4 2015 3.59537656082297 2016 3.6