Year	Percent change
1993	25.013
1994	-4.604
1995	16.257
1996	22.008
1997	21.1
1998	0.015
1999	-0.049
2000	12.435
2001	-7.065
2002	-2.535
2003	25.822
2004	18.029
2005	-8.984
2006	17.232
2007	17.205
2008	18.824
2009	-1.383
2010	-5.537
2011	8.668
2012	25.197
2013	14.424
2014	-25.362
2015	-15.247
2016	-3.456
2017	6.009
2018	-3.832
2019	3.48
2020	0.772
2021	2.43
2022	5.159
2023	-5.093
2024	-4.089