Year	Percent change
1980	5.047
1982	16.3
1983	-1.7
1984	6.2
1985	5.7
1986	-22
1987	-28.7
1988	3.4
1989	16.8
1990	-9
1991	-17.9
1992	4.6
1993	-6.7
1994	6.1
1995	2
1996	-13.3
1997	2.4
1998	6.5
1999	1.8
2000	7.6
2001	11.2
2002	23.2
2003	-2.911
2004	21.906
2005	6.292
2006	-8.77
2007	14.785
2008	34.873
2009	12.357
2010	-1.781
2011	5.469
2012	13.432
2013	8.972
2014	9.143
2015	-7.602
2016	-1.898
2017	-1.372
2018	-5.992
2019	8.646
2020	-8.103
2021	-3.557
2022	-8.648
2023	-6.904
2024	-5.206