Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	4.38534647716325
2008	4.24712781654641
2009	4.1444575778
2010	4.0427604923
2011	4.1
2012	4.2
2013	4.5
2014	4.7
2015	4.59361881178025
2016	4.6
2017	4.5