Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	4.97
2008	5.00629728743169
2009	4.9823995187
2010	4.7826962317
2011	4.7
2012	4.9
2013	4.7
2014	4.4
2015	4.01746178588202
2016	4
2017	3.9