Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	4.74673565937315
2008	4.93916075586828
2009	5.1248551
2010	5.3340971476
2011	5.1
2012	4.6
2013	3.9
2014	4.1
2015	4.6282050101113
2016	4.6
2017	4.4