Year	Percent change
1996	4.489
1997	-13.046
1998	-11.42
1999	0.554
2000	10.636
2001	-6.386
2002	11.294
2003	1.843
2004	14.587
2005	11.34
2006	0.549
2007	-5.177
2008	19.231
2009	-25.128
2010	5.06
2011	-2.142
2012	29.361
2013	18.624
2014	0.994
2015	-14.313
2016	-7.575
2017	16.954
2018	15.55
2019	0.556
2020	6.4
2021	6.331
2022	6.245
2023	6.467
2024	6.991