Year	Percent
1986	0.05343
1987	0.01287
1988	0.01828
1989	0.14673
1990	-0.23971
1991	-0.12106
1992	0.40341
1993	0.23393
1994	0.42474
1995	0.35465
1996	0.86819
1997	0.7481
1998	0.88969
1999	1.3941
2000	4.19569
2001	4.08156
2002	3.71663
2003	3.3871
2004	18.81289
2005	42.35406
2006	32.55656
2007	47.92049
2008	-21.40166
2009	17.55346
2010	-18.7195
2011	0.1632
2012	-22.42464
2013	3.39018
2014	0.12341
2015	2.6595
2016	-8.91451
2017	-29.69239