Year	Percent change
1980	-0.708
1981	1.864
1982	28.568
1983	9.19
1984	-9.429
1985	-9.206
1986	15.754
1987	-9.671
1988	7.429
1989	8.833
1990	9.66
1991	6.225
1992	-4.987
1993	-7.52
1994	-0.294
1995	23.66
1996	-14.151
1997	-9.667
1998	11.295
1999	2.653
2000	-21.412
2001	3.091
2002	8.594
2003	18.507
2004	13.674
2005	2.908
2006	-13.046
2007	26.428
2008	-2.893
2009	2.734
2010	-0.43
2011	12.255
2012	1.66
2013	12.399
2014	4.181
2015	-5.268
2016	6.374
2017	9.869
2018	9.1
2019	6.706
2020	10.267
2021	8.944
2022	41.544
2023	14.25
2024	3.284