Year	annual % change
1997	-10.961899757385254
1998	13.806900024414062
1999	-27.5
2000	-8.1180286407
2001	-22.7105102539
2002	42.1899986267
2003	186.2100067139
2004	-15
2005	59.9861981713
2006	60.3019410496
2007	11.812718629473498
2008	-40.3056313172
2009	0.5555379796
2010	33.798298650240085
2011	-31.6319731897204
2012	43.2271717995317
2013	37.9011088849567
2014	13.8341195522648
2015	-24.1568941839173
2016	-11.8321106174885
2017	23.4594912087032
2018	-14.7260399353428
2019	26.5949143295168
2020	-21.6069450751501
2021	11.9609000325259
2022	-26.6901073829587