Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 4.82215085638999 2008 4.35271401153923 2009 4.5931675089 2010 4.6156736688 2011 4.2 2012 3.9 2013 3.8 2014 3.8 2015 4.00603532175864 2016 4 2017 4.7