Year	Percent change
1980	5.738
1981	4.265
1982	2.154
1983	-2.151
1984	4.129
1985	3.293
1986	6.27
1987	8.546
1988	-0.09
1989	0.258
1990	1.169
1991	-0.224
1992	-3.374
1993	1.313
1994	3.609
1995	0.117
1996	4.785
1997	4.912
1998	7.129
1999	4.043
2000	4.892
2001	3.899
2002	0.681
2003	2.268
2004	8.042
2005	6.33
2006	5.249
2007	9.365
2008	1.992
2009	-6.777
2010	-3.436
2011	1.882
2012	1.296
2013	4.134
2014	2.083
2015	4.749
2016	6.627
2017	4.604
2018	4.612
2019	1.704
2020	2.902
2021	2.677
2022	2.522
2023	2.524
2024	2.519