Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 5.10179607396761 2008 5.10703258255422 2009 5.15270752727647 2010 5.2163173555147 2011 5.21470588235294 2012 5.22941176470588 2013 5.22647058823529 2014 5.28181818181818 2015 5.06343366748548 2016 5.06969696969697 2017 5.02727272727273