Year	Percent change
1993	-27.123
1994	-18.97
1995	-17.364
1996	6.701
1997	21.056
1998	-8.735
1999	-10.412
2000	10.522
2001	-3.239
2002	7.316
2003	21.156
2004	19.97
2005	-3.907
2006	20.934
2007	31.318
2008	17.652
2009	-7.956
2010	-11.447
2011	12.835
2012	22.963
2013	12.546
2014	-22.633
2015	-6.98
2016	-1.588
2017	1.279
2018	-2.904
2019	3.342
2020	1.307
2021	2.567
2022	4.673
2023	-3.23
2024	-2.336