Year	Percent change
1980	5.7
1981	5.3
1982	4.2
1983	3
1984	4.6
1985	1.8
1986	5.3
1987	4.7
1988	2.4
1989	-0.5
1990	-9.1
1991	-10.755
1992	-8.426
1993	-11.625
1994	-3.665
1995	-1.601
1996	-8.043
1997	-1.646
1998	4.861
1999	-0.494
2000	5.005
2001	3.77
2002	5.938
2003	5.156
2004	6.435
2005	7.123
2006	6.874
2007	7.344
2008	6.022
2009	-3.586
2010	1.324
2011	1.915
2012	0.031
2013	0.494
2014	1.838
2015	3.471
2016	3.937
2017	3.811
2018	3.2
2019	3.3
2020	3
2021	2.8
2022	2.8
2023	2.8
2024	2.8