Year	Percent change
1990	15
1991	-44.208
1992	-0.75
1993	-9.79
1994	-8.876
1995	-11.288
1996	-7.207
1997	-0.766
1998	8.713
1999	-2.991
2000	4.414
2001	-7.179
2002	0.722
2003	18.507
2004	6.257
2005	13.755
2006	23.411
2007	17.295
2008	8.477
2009	-22.699
2010	-20.199
2011	29.962
2012	27.095
2013	3.89
2014	8.494
2015	31.171
2016	-36.193
2017	8.142
2018	1.543
2019	7.072
2020	6
2021	6
2022	6
2023	6
2024	-7.769