Year	Percent change
1993	-9.4
1994	9.4
1995	17.719
1996	6.225
1997	8.583
1998	-15.991
1999	-27.827
2000	9.492
2001	25.949
2002	14.484
2003	10.387
2004	13.114
2005	10.633
2006	26.964
2007	34.334
2008	22.243
2009	-32.635
2010	29.002
2011	20.044
2012	7.216
2013	0.877
2014	-7.637
2015	-25.013
2016	-4.265
2017	16.662
2018	3.799
2019	3.8
2020	6.244
2021	6.75
2022	6.011
2023	6.222
2024	6.292