Year	Percent change
1980	-2.734
1981	-26.079
1982	-20.24
1983	13.451
1984	9.307
1985	6.562
1986	17.585
1987	17.582
1988	-0.908
1989	16.913
1990	10.439
1991	-4.394
1992	23.594
1993	14.525
1994	5.132
1995	2.976
1996	2.983
1997	14.014
1998	24.824
1999	0.461
2000	-2.356
2001	0.01
2002	6.128
2003	4.548
2004	4.8
2005	6.974
2006	7.841
2007	10.116
2008	6.871
2009	-18.779
2010	18.711
2011	10.727
2012	7.834
2013	1.681
2014	5.022
2015	4.402
2016	8.885
2017	3.035
2018	-0.31
2019	3.936
2020	3.397
2021	2.927
2022	3.078
2023	3.51
2024	3.841