Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	3.57366023723203
2008	3.6190519860704
2009	3.76598165639245
2010	3.89056791013036
2011	3.90350877192982
2012	3.92982456140351
2013	3.93898305084746
2014	3.94210526315789
2015	3.90526211328893
2016	3.90535714285714
2017	4.02452830188679