Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	5.54754141124299
2008	5.22075071328671
2009	5.173741949
2010	5.1531016113
2011	5.2
2012	5.2
2013	5.2
2014	5.3
2015	5.40094223330098
2016	5.4
2017	5.3