Year	Percent change
1980	-2.663
1981	-1.797
1982	-1.67
1983	3.891
1984	0.17
1985	-3.132
1986	-0.201
1987	8.421
1988	1.25
1989	4.264
1990	2.2
1991	6
1992	12.7
1993	4
1994	8.1
1995	10.089
1996	1.61
1997	-0.914
1998	1.292
1999	-0.486
2000	-14.277
2001	-7.957
2002	-2.8
2003	6.523
2004	8.089
2005	12.853
2006	3.993
2007	6.389
2008	7.106
2009	-4.738
2010	6.809
2011	13.196
2012	4.555
2013	3.018
2014	2.25
2015	2.542
2016	3.457
2017	3.534
2018	3.386
2019	2.882
2020	2.76
2021	2.66
2022	2.694
2023	2.778
2024	2.884