Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	3.5760144238126
2008	3.91661819052367
2009	3.9990449083
2010	4.0317396614
2011	4.2
2012	4.3
2013	4.2
2014	4.2
2015	3.99162966251373
2016	4
2017	4.1