Year	%
2005	2.223327325134814
2006	1.7992572409159073
2007	-1.7234899854104893
2008	-2.9869518860136
2009	6.78107363941052
2010	3.4535089010102613
2011	1.3465052421817465
2012	1.7090973367485964
2013	4.053292196268709
2014	6.959692240164251
2015	4.04115044114453
2016	4.29827404463135
2017	4.514047781377103