Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 3.51752551307957 2008 3.55391578617994 2009 3.75078964875 2010 3.89108165092439 2011 3.84545454545455 2012 3.86590909090909 2013 3.79565217391304 2014 3.64347826086956 2015 3.61113659924719 2016 3.60909090909091 2017 3.68809523809524