Year	Percent
1993	14.16993
1994	21.75589
1995	2.7014
1996	8.33958
1997	6.37366
1998	-0.212
1999	-2.35007
2000	-5.72667
2001	5.51114
2002	-0.34337
2003	-5.87474
2004	-1.71274
2005	-0.2783
2006	-3.34697
2007	-0.69005
2008	-11.47336
2009	2.00403
2010	0.32046
2011	6.64328