Year	%
1984	-23.13700399117023
1985	-0.9895931410791656
1986	9.77856634792798
1987	-21.079674188970902
1988	-8.439120211803784
1989	-35.242399429747785
1990	-4.380528908513659
1991	12.938465651966416
1992	10.201983158307579
1993	21.463531179852133
1994	-5.055957991338179
1995	-7.917595505105026
1996	-35.314457353119174
1997	-7.661556203736032
1998	23.09878633410211
1999	4.701637098437559
2000	-3.285875329636152
2001	13.384423133962665
2002	2.672189946683735
2003	-7.218669896258823
2004	-11.539102587998261
2005	-9.872293158619227
2006	-2.0589991732632185
2007	1.4348584530546125
2008	-5.964399617398733
2009	11.185644607434092
2010	-18.908558746605635
2011	-8.583113846523835
2012	2.034527030694445
2013	-14.470322956852554
2014	-16.539976058374602