Year	Percent
1996-01-01	0.41050000000000000
1997-01-01	0.45196300000000000
1998-01-01	0.34635900000000003
1999-01-01	0.31513700000000000
2000-01-01	0.44275400000000000
2001-01-01	5.86973000000000100
2002-01-01	7.23101000000000000
2003-01-01	8.19002000000000000
2004-01-01	6.63676999999999900
2005-01-01	5.44230000000000000
2006-01-01	5.02909000000000000
2007-01-01	3.81331999999999960
2008-01-01	3.52634000000000030
2009-01-01	3.06796000000000000
2010-01-01	2.63369000000000000
2011-01-01	2.58313000000000000
2012-01-01	2.68794000000000000
2013-01-01	2.98959000000000000
2014-01-01	2.96965000000000000
2015-01-01	2.97762000000000000
2016-01-01	3.12837000000000000
2017-01-01	3.88038000000000000