Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 3.17700200684419 2008 3.3218242940738 2009 3.55810999985357 2010 3.6846534747 2011 3.634375 2012 3.73666666666667 2013 3.52857142857143 2014 3.37714285714286 2015 3.2979094453715 2016 3.2969696969697 2017 3.33333333333333