Year	Percent change
1980	-4.613
1981	-1.237
1982	-12.874
1983	2.917
1984	2.039
1985	5.404
1986	10.712
1987	-6.504
1988	23.691
1989	-8.692
1990	-3.259
1991	-4.967
1992	1.99
1993	23.131
1994	8.861
1995	8.3
1996	16.3
1997	2.8
1998	7.893
1999	-15.165
2000	20.3
2001	10.182
2002	4.05
2003	11.648
2004	10.632
2005	-0.434
2006	0.497
2007	4.721
2008	0.957
2009	-20.401
2010	19.872
2011	11.954
2012	10.335
2013	-1.222
2014	1.327
2015	5.374
2016	1.929
2017	6.952
2018	-1.169
2019	3.306
2020	3.453
2021	3.223
2022	3.818
2023	4.489
2024	3.98