Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	4.0187012987013
2008	3.99505344827911
2009	4.4402302088
2010	4.8901462286
2011	5.2
2012	5.3
2013	5.2
2014	5.3
2015	5.32694156546342
2016	5.3
2017	5.1