Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	3.50814418790585
2008	3.55007571729063
2009	3.65944867100263
2010	3.81396095065897
2011	3.8525
2012	3.80487804878049
2013	3.81951219512195
2014	3.83333333333333
2015	3.80520739314342
2016	3.80512820512821
2017	3.93055555555556