Year	Percent
1991-01-01	118.5275789059850000
1992-01-01	91.2979327269304000
1993-01-01	72.8787913866333000
1994-01-01	35.9247053929643000
1995-01-01	27.9513885633040000
1996-01-01	19.7949669196707000
1997-01-01	8.8810415239596600
1998-01-01	8.2083333333329900
1999-01-01	4.0191387559808400
2000-01-01	8.9117441865876400
2001-01-01	5.7482798165137700
2002-01-01	3.1271422298460400
2003-01-01	2.3486416958275500
2004-01-01	3.5929759424951300
2005-01-01	3.3171782444804500
2006-01-01	3.9303260384100000
2007-01-01	4.8373292831398900
2008-01-01	6.3586638015237400
2009-01-01	2.7532022391481600
2010-01-01	1.8011702213713600
2011-01-01	4.1303006883834400
2012-01-01	3.3349226769344300
2013-01-01	1.4382978723404300
2014-01-01	0.0538213132400467
2015-01-01	-0.4923260065473380
2016-01-01	-0.0549995416704911
2017-01-01	2.0759355367386200