Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 5.33763873725073 2008 5.47766252317418 2009 5.6020199091 2010 5.6262757446 2011 5.6 2012 5.6 2013 5.6 2014 5.6 2015 5.54749877089161 2016 5.5 2017 5.6