Year	Percent change
1980	-4.947
1981	-1.288
1982	2.645
1983	-9.856
1984	5.223
1985	0.867
1986	6.08
1987	4.801
1988	6.51
1989	-13.92
1990	6.468
1991	9.73
1992	6.06
1993	0.275
1994	-2.349
1995	3.952
1996	-0.198
1997	6.371
1998	0.294
1999	-5.97
2000	3.687
2001	3.394
2002	-8.856
2003	-7.755
2004	18.287
2005	10.318
2006	9.872
2007	8.754
2008	5.278
2009	-3.202
2010	-1.489
2011	4.176
2012	5.626
2013	1.343
2014	-3.894
2015	-6.221
2016	-17.04
2017	-15.671
2018	-18
2019	-25
2020	-10
2021	-5
2022	-2
2023	-1.5
2024	-1.5