Year	annual % change
2006	24.380911220679423
2007	41.873752172552756
2008	-64.26147544125399
2009	76.73171825618468
2010	-3.344766902517393
2011	-34.4468012421858
2012	0.552522370152109
2013	9.95857399980449
2014	-14.353719567231
2015	-29.2599326041912
2016	16.9077292120166
2017	19.8842042038709
2018	-21.5379301156278
2019	-10.8836797998663
2020	13.4033302163751
2021	13.8085748268574
2022	-30.370478814428