Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	5.50966676904177
2008	5.17569661497326
2009	5.0982982929
2010	5.4555258745
2011	5.5
2012	5.5
2013	5.5
2014	5.3
2015	5.23480620384216
2016	5.2
2017	5.2