Year	Percent change
1981	7.817
1982	-0.319
1983	3.238
1984	7.006
1985	1.586
1986	3.202
1987	1.594
1988	3.452
1989	1.242
1990	1.7
1991	-16.908
1992	0.579
1993	-1.091
1994	17.798
1995	6.837
1996	10.406
1997	14.22
1998	11.838
1999	3.713
2000	14.151
2001	2.665
2002	5.287
2003	5.127
2004	8.365
2005	8.718
2006	8.294
2007	7.366
2008	3.727
2009	-20.607
2010	9.575
2011	8.342
2012	-1.982
2013	1.372
2014	-0.232
2015	0.068
2016	6.388
2017	4.883
2018	3.1
2019	3.14
2020	2.94
2021	2.96
2022	3
2023	3
2024	2.95