Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 3.16053866875035 2008 3.30244737974279 2009 3.44689587242632 2010 3.60953066874737 2011 3.57 2012 3.66363636363636 2013 3.49565217391304 2014 3.22380952380952 2015 3.15350807081045 2016 3.155 2017 3.13