Year	Percent change
1986	-4.1
1987	-5.794
1988	4.365
1989	12.262
1990	9.653
1991	15.26
1992	3.341
1993	-11.4
1994	12.994
1995	9.886
1996	11.743
1997	17.634
1998	-9.77
1999	-20.768
2000	6
2001	-1.95
2002	3.32
2003	-23.24
2004	-6.193
2005	-9.508
2006	-2.648
2007	-13.527
2008	13.186
2009	22.191
2010	60.65
2011	46.499
2012	-11.264
2013	1.47
2014	-7.382
2015	-3.868
2016	-13.628
2017	8.333
2018	27.201
2019	-13.745
2020	2.211
2021	6.599
2022	5.846
2023	5.461
2024	7.976