Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	2.07216623476341
2008	2.43819400900556
2009	3.2205093234
2010	3.5407745243
2011	3.9
2012	3.7
2013	3.5
2014	3.7
2015	4.15121016869178
2016	4.2
2017	4.1