Year	Percent
1998	1.37441
1999	0.48507
2000	0.32854
2001	0.39997
2004	1.98651
2005	0
2006	0
2007	-0.0269
2008	-0.00249
2009	-0.0057
2010	0.36743
2011	-0.06167
2012	-0.24424
2013	-0.09606
2014	1.50741
2015	2.02091
2016	0.5908
2017	-0.38427