Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	5.40625
2008	5.37662289302326
2009	5.5210968439
2010	5.3964858837
2011	5.2
2012	5.5
2013	5.4
2014	5
2015	4.68210018125631
2016	4.7
2017	4.6