Year	Percent change
1994	25.9
1995	19.371
1996	-2.468
1997	12.281
1998	10.426
1999	-3.639
2000	-6.952
2001	6.333
2002	2.821
2003	10.172
2004	17.291
2005	19.924
2006	9.53
2007	12.614
2008	0.898
2009	-20.308
2010	24.046
2011	24.17
2012	4.814
2013	2.759
2014	2.843
2015	-1.444
2016	5.213
2017	3.507
2018	4.302
2019	2.985
2020	3.234
2021	3.464
2022	3.562
2023	3.594
2024	3.594