Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 2.51282051282051 2008 2.41859514219114 2009 2.9426776104 2010 3.316531389 2011 2.8 2012 3 2013 2.6 2014 1.7 2015 1.38859931230545 2016 1.4 2017 1.4