Year	Percent change
1980	0.002
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0
1992	0
1993	1.303
1994	-5.186
1995	-1.097
1996	1.564
1997	12.604
1998	3.332
1999	19.916
2000	6.244
2001	5.349
2002	10.605
2003	14.443
2004	7.274
2005	11.928
2006	16.107
2007	-6.93
2008	1.072
2009	-6.24
2010	10.264
2011	3.719
2012	7.913
2013	1.5
2014	7.179
2015	-0.929
2016	-19.473
2017	9.961
2018	-0.555
2019	4.54
2020	3.394
2021	1.759
2022	2.166
2023	2.114
2024	0.929