Year	annual %
2006	26.711969061357422
2007	12.269196325718099
2008	-2.3084131028271884
2009	0.26863756093517566
2010	-26.776590201437017
2011	3.16685620317476
2012	7.294107696086044
2013	-2.9323420557008717
2014	-1.903277196284634
2015	3.1213382542686787
2016	-8.80004320434658
2017	-14.386733899965392
2018	-8.372821237428312
2019	-10.59253181367771