Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 3.37361767684955 2008 3.45324178016834 2009 3.61645650748485 2010 3.75669621130571 2011 3.75555555555556 2012 3.77605633802817 2013 3.68552631578947 2014 3.61756756756757 2015 3.57269583374795 2016 3.57222222222222 2017 3.65909090909091