Year	Percent change
1980	13.118
1981	-10.178
1982	8.354
1983	1.987
1984	1.527
1985	-2.937
1986	0.627
1987	15.447
1988	-10.517
1989	14.154
1990	7.179
1991	12.085
1992	6.856
1993	2.443
1994	3.473
1995	10.562
1996	-0.142
1997	5.883
1998	1.918
1999	4.749
2000	8.989
2001	2.83
2002	-1.026
2003	7.44
2004	26.734
2005	8.494
2006	7.719
2007	12.116
2008	12.358
2009	-2.885
2010	-3.205
2011	-5.281
2012	-8.083
2013	9.659
2014	-13.248
2015	17.384
2016	-10.005
2017	2.821
2018	18.247
2019	13.804
2020	8.151
2021	5.662
2022	3.383
2023	2.124
2024	4.357