Year	Percent
1983	0.04669
1984	0.04458
1985	0.11067
1986	0.15238
1987	-0.03879
1997	-0.31371
1998	0.01655
1999	3.8787
2000	0.30904
2001	1.69974
2002	1.18114
2003	1.99196
2004	0.19126
2005	2.13361
2006	2.01426
2007	0
2008	2.51164
2009	0
2010	0
2011	0.26427
2012	0.73925
2013	0.23517
2014	-0.0651
2015	0.52593
2016	0.37001
2017	0.4256