Year	annual % change
1996	29.7999992371
1997	21.7630004883
1998	-43.0027999878
1999	66.9000015259
2000	-10.3367166519
2001	-22.5126304626
2002	-32.9599990845
2003	105.3700027466
2004	33.6800003052
2005	47.6437026314
2006	43.0665943776
2007	74.67163348733702
2008	-57.1782692388
2009	125.1100585124
2010	6.500411693968755
2011	-24.4143306774468
2012	-0.269773966585163
2013	-19.1393488526925
2014	-18.3777239149514
2015	-44.2980795091941
2016	62.5686403581319
2017	22.5894409958877
2018	-4.45070979376343
2019	25.9984954277158
2020	-18.9503531518933
2021	-25.3311075687652
2022	-4.4449333488295