Year	1=extremely underdeveloped to 7=well developed and efficient by international standards
2007	4.25374936245189
2008	4.43825455190706
2009	4.5140644761
2010	4.3812740271
2011	4.3
2012	4.4
2013	4.5
2014	4.1
2015	3.99527342876831
2016	4
2017	4.5