Year	Percent change
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1990	0
1991	0
1992	0
1993	-4.658
1994	14.366
1995	-2.892
1996	1.68
1997	18.672
1998	4.215
1999	31.892
2000	7.259
2001	-0.427
2002	14.153
2003	7.289
2004	1.756
2005	2.357
2006	21.024
2007	-11.058
2008	8.372
2009	-10.817
2010	24.001
2011	11.949
2012	2.039
2013	-3.343
2014	-4.504
2015	-7.823
2016	-23.651
2017	19.379
2018	-4.743
2019	8.421
2020	4.246
2021	1.105
2022	1.771
2023	-0.043
2024	-0.606