Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	4.30811930535521
2008	4.36434289304633
2009	4.54690525583333
2010	4.61528712138235
2011	4.54705882352941
2012	4.53125
2013	4.48823529411765
2014	4.36470588235294
2015	4.5198446398853
2016	4.52666666666667
2017	4.4375