Year	annual % change
1997	-32.388099670410156
1998	17.28420066833496
1999	-33.5
2000	-50.8990631104
2001	4.4921875
2002	27.5699996948
2003	65.3799972534
2004	32.7000007629
2005	-33.9282735613
2006	9.7197677354
2007	21.58306488725265
2008	-10.4087812263
2009	-42.7000932925
2010	94.0622373378049
2011	-22.8177028708331
2012	7.73527105338372
2013	54.910959839869
2014	-22.5243320251618
2015	-29.6167779192867
2016	-19.2593628916488
2017	49.1269527180027
2018	-17.6781263020519
2019	-23.6051740102781
2020	-17.4191798884871
2021	36.348657203692
2022	-46.4222731616495