Year	%
2006	29.21733253769956
2007	22.224351688582207
2008	18.83434227020323
2009	24.69477026615559
2010	29.58282582107222
2011	26.330350234047096
2012	21.244738634397283
2013	16.147233591984893
2014	17.524738160360425
2015	20.76675034790969
2016	14.084056525568293
2017	-15.69024723362689
2018	-4.771255750614144
2019	19.680200368700362
2020	21.228696044718035
2021	7.227882784212565