Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	4.42894920895636
2008	4.50524818281277
2009	4.60780474037857
2010	4.77533788115333
2011	4.6875
2012	4.57222222222222
2013	4.38947368421053
2014	4.31111111111111
2015	4.28830571208772
2016	4.28235294117647
2017	4.33529411764706