Year	Percent change
1980	4.353
1981	-8.907
1982	1.698
1983	-4.395
1984	4.753
1985	-8.332
1986	-2.115
1987	8.809
1988	19.195
1989	14.134
1990	7.792
1991	1.619
1992	19.158
1993	-25.485
1994	8.727
1995	-17.329
1996	7.872
1997	0.885
1998	1.909
1999	3.308
2000	12.546
2001	-0.193
2002	-0.355
2003	-0.976
2004	6.946
2005	1.57
2006	5.702
2007	10.463
2008	12.508
2009	-15.34
2010	7.836
2011	-3.191
2012	-4.655
2013	-4.035
2014	3.635
2015	8.431
2016	6.575
2017	12.217
2018	2
2019	0.221
2020	4.449
2021	4.103
2022	3.874
2023	3.808
2024	3.787