Year	Percent
1997-01-01	0.7352760000000000
1998-01-01	1.6233100000000000
1999-01-01	1.6233100000000000
2000-01-01	1.6233100000000000
2001-01-01	1.1816100000000000
2002-01-01	1.2501900000000000
2003-01-01	1.1535000000000000
2004-01-01	1.0871899999999999
2005-01-01	1.0301000000000000
2006-01-01	0.8482190000000001
2007-01-01	0.9345240000000000
2008-01-01	1.0710300000000000
2009-01-01	1.0680800000000000
2010-01-01	1.0315299999999998
2011-01-01	0.9667070000000000
2012-01-01	1.9091099999999999
2013-01-01	3.8250800000000003
2014-01-01	4.6544800000000000
2015-01-01	4.1811900000000000
2016-01-01	3.7194599999999998