Year	Percent
1996-01-01	-2.7505599999999997
1997-01-01	37.1590000000000000
1998-01-01	35.7939000000000000
1999-01-01	27.8933000000000000
2000-01-01	25.3251000000000000
2001-01-01	19.4923000000000000
2002-01-01	18.9222000000000000
2003-01-01	22.0547000000000000
2004-01-01	15.7589000000000000
2005-01-01	16.7149000000000000
2006-01-01	16.2371000000000000
2007-01-01	18.4692000000000000
2008-01-01	17.9282000000000000
2009-01-01	19.0356000000000000
2010-01-01	18.4571000000000000
2011-01-01	17.0772000000000000
2012-01-01	15.9424000000000000
2013-01-01	40.7062000000000000
2014-01-01	13.6835000000000000
2015-01-01	12.2436000000000000
2016-01-01	10.9627000000000000