Year	Percent change
1980	-11.591
1981	0.235
1982	-6.598
1983	1.521
1984	14.45
1985	-7.291
1986	36.774
1987	74.268
1988	15.831
1989	-4.298
1991	2.891
1992	11.28
1993	4.256
1994	-7.602
1995	-15.059
1996	-3.768
1997	-1.455
1998	18.796
1999	-1.151
2000	-3.739
2001	3.003
2002	-4.441
2003	-7.681
2004	3.833
2005	-2.427
2006	9.897
2007	13.826
2008	-10.111
2009	0.172
2010	4.485
2011	25.303
2012	9.46
2013	-10.266
2014	34.425
2015	23.708
2016	112.629
2017	-14.345
2018	10.345
2019	16.846
2020	4.449
2021	0.065
2022	1.754
2023	0.346
2024	4.26