Year	Percent
1998-01-01	0.1077320000000000
1999-01-01	0.0797500000000000
2000-01-01	0.0715140000000000
2001-01-01	0.7231660000000000
2002-01-01	0.7248750000000000
2003-01-01	0.6262730000000000
2004-01-01	0.3436090000000000
2005-01-01	0.3987930000000000
2006-01-01	1.0904500000000000
2007-01-01	0.4913040000000000
2008-01-01	0.8442790000000001
2009-01-01	0.9881629999999999
2010-01-01	0.9881629999999999
2011-01-01	2.4007200000000000
2012-01-01	2.0912000000000000
2013-01-01	2.3288300000000000
2014-01-01	1.9788900000000000
2015-01-01	3.4504599999999996
2016-01-01	1.6984599999999999