Year	annual % change
1998	-30.8591995239
1999	24.2000007629
2000	-45.6464691162
2001	-45.5297622681
2002	-5.7800002098
2003	79.3099975586
2004	126.4000015259
2005	158.0474351903
2006	10.2171682627
2007	52.23799550073696
2008	-55.8496815287
2009	35.5539014605
2010	11.50163783152227
2011	-49.143834841225
2012	41.1782029922822
2013	12.0782886495252
2014	26.3026425619473
2015	-27.5003323715287
2016	-22.8508907903659
2017	21.0013287961249
2018	-10.2563654020289
2019	25.3794491199696
2020	-22.4090995285298
2021	13.7022784398934
2022	-22.2992069402927