Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 4.20042106670861 2008 3.96837850210404 2009 4.1088483 2010 4.3909584404 2011 4.2 2012 4.1 2013 4.1 2014 3.9 2015 3.97652574155642 2016 4 2017 3.8