Year	Percent change
1980	-7.202
1981	2.284
1982	-8.81
1983	-7.777
1984	1.197
1985	0.238
1986	-4.436
1987	3.639
1988	7.401
1989	14.486
1990	47
1991	-3.793
1992	4.248
1993	15.818
1994	-1.255
1995	11.189
1996	12.902
1997	15.73
1998	-6.935
1999	3.447
2000	21.027
2001	4.326
2002	6.801
2003	19.302
2004	20.634
2005	16.332
2006	13.81
2007	15.677
2008	18.929
2009	-11.729
2010	6.186
2011	18.388
2012	17.363
2013	8.499
2014	5.558
2015	2.343
2016	6.107
2017	0.261
2018	-7.786
2019	2.889
2020	1.747
2021	0.064
2022	0.465
2023	0.51
2024	0.169