Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	5.70858914907606
2008	5.77829531692084
2009	5.6129212045
2010	5.6848688947
2011	5.8
2012	5.7
2013	5.5
2014	5.5
2015	5.45897377843911
2016	5.5
2017	5.4