Year	Percent
1992-01-01	226.0054212535260000
1993-01-01	85.0047512387157000
1994-01-01	22.5650526933696000
1995-01-01	7.7932185378921600
1996-01-01	12.7254778087102000
1997-01-01	33.1802743753956000
1998-01-01	20.6428588670596000
1999-01-01	0.3894376535615980
2000-01-01	0.0500181363468518
2001-01-01	3.1075882703143400
2002-01-01	7.7705258343154900
2003-01-01	0.4840026118185020
2004-01-01	2.2800191693809900
2005-01-01	2.3665819567979800
2006-01-01	2.3707283190428100
2007-01-01	2.9326824816232000
2008-01-01	3.3592424177658500
2009-01-01	2.2805022218201600
2010-01-01	3.5522673879091200
2011-01-01	3.4503471526800700
2012-01-01	2.0315959399652600
2013-01-01	1.9376175490387700
2014-01-01	1.6063520198498000
2015-01-01	1.9100169779287000
2016-01-01	1.2751252811328600
2017-01-01	1.9939281048202500