Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 2.70636664818775 2008 2.8280553173913 2009 3.1997943839 2010 3.4850883841 2011 3.4 2012 3.4 2013 3.5 2014 3.7 2015 3.60215963821121 2016 3.6 2017 3.6