Year 1=extremely underdeveloped to 7=well developed and efficient by international standards 2007 3.58260307019999 2008 3.65381125768756 2009 3.90065805159167 2010 4.09174317704348 2011 3.95384615384615 2012 3.988 2013 4.036 2014 3.9875 2015 3.83561916931907 2016 3.83181818181818 2017 3.96