Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 4.65993265993266 2008 4.43729856883117 2009 4.2944211294 2010 4.5401502198 2011 4.7 2012 4.8 2013 4.9 2014 5 2015 4.74838611339701 2016 4.7 2017 4.2