Year	Percent change
1981	7.422
1982	1.369
1983	1.013
1984	0.668
1985	0.172
1986	0.497
1987	2.764
1988	2.838
1989	2.706
1990	5.628
1991	0.888
1992	1.1
1993	-0.062
1994	2.179
1995	2.594
1996	3.9
1997	0.369
1998	-0.184
1999	1.558
2000	3.53
2001	-1.959
2002	2.308
2003	0.541
2004	4.94
2005	5.88
2006	4.519
2007	4.248
2008	1.36
2009	3.905
2010	0.527
2011	3.266
2012	1.152
2013	0.811
2014	0.07
2015	-0.159
2016	0.453
2017	1.161
2018	2.505
2019	0.347
2020	1.292
2021	1.273
2022	1.296
2023	1.375
2024	1.415