Year	Percent
1991	-11.40251
1992	-0.60821
1993	-0.04205
1994	2.87214
1995	6.28655
1996	4.34418
1997	-0.48748
1998	-0.23424
1999	1.53653
2000	4.55953
2001	3.29614
2002	1.84877
2003	3.63265
2004	4.87464
2005	6.38621
2006	6.56456
2007	4.9882
2008	1.83415
2009	-5.3434
2010	1.97587
2011	1.56763
2012	-0.93855
2013	-0.51668
2014	2.60704
2015	5.10242
2016	2.39649
2017	4.043