Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	4.30050778812722
2008	4.32203992379076
2009	4.39322293600454
2010	4.42873103015555
2011	4.44666666666666
2012	4.46222222222222
2013	4.49772727272727
2014	4.47727272727273
2015	4.34940235845237
2016	4.35333333333333
2017	4.375