Year	Percent change
1991	-2.3
1992	-7.1
1993	12.4
1994	-19
1995	10.348
1996	-0.085
1997	-12.203
1998	-6.115
1999	6.176
2000	-1.766
2001	-3.574
2002	-9.274
2003	-11.134
2004	17.342
2005	9.213
2006	36.27
2007	0.474
2008	2.532
2009	-7.536
2010	14.015
2011	3.356
2012	10.125
2013	-3.939
2014	-0.949
2015	2.006
2016	-2.576
2017	19.771
2018	-3.403
2019	16.665
2020	2.82
2021	3.35
2022	1.407
2023	1.502
2024	3.063