Year	Percent
1990	-2.31794
1991	4.76361
1992	11.10827
1993	16.82106
1994	0.37914
1995	-5.11178
1996	-1.03877
1997	-2.02514
1998	-3.46865
1999	-4.0256
2000	0.06641
2001	1.57439
2002	1.06891
2003	-0.75657
2004	1.03491
2005	-1.80292
2006	5.87457
2007	4.23568
2008	5.77696
2009	0.51412
2010	0.61036
2011	-1.58234
2012	-0.04022
2013	-0.3305
2014	-0.53924
2015	-0.04463
2016	-3.08016