Year	Percent change
1980	-2.285
1981	-3.419
1982	-3.708
1983	-5.156
1984	5.881
1985	3.717
1986	3.26
1987	-2.484
1988	10.124
1989	4.1
1990	5.897
1991	-0.59
1992	-3.207
1993	-16.319
1994	13.93
1995	19.691
1996	-3.871
1997	3.803
1998	-2.263
1999	2.536
2000	-0.968
2001	0.823
2002	3.827
2003	6.72
2004	-0.979
2005	-4.666
2006	2.65
2007	-1.175
2008	4.062
2009	5.538
2010	6.099
2011	6.398
2012	6.544
2013	6.112
2014	5.921
2015	5.743
2016	5.559
2017	4.4
2018	4.748
2019	5.049
2020	5.3
2021	5.4
2022	5.4
2023	5.4
2024	5.4