Year	Percent
1999-01-01	0.180910000000000000
2000-01-01	0.224550000000000000
2001-01-01	0.203456000000000000
2002-01-01	0.225500000000000000
2003-01-01	0.196655000000000000
2004-01-01	0.181703000000000000
2005-01-01	0.151284000000000000
2006-01-01	0.139843000000000000
2007-01-01	0.015246000000000001
2008-01-01	0.029410000000000002
2009-01-01	0.209806000000000000
2010-01-01	1.005160000000000000
2011-01-01	0.257786000000000000
2012-01-01	0.057976000000000000
2013-01-01	0.054863999999999996
2014-01-01	0.203071000000000000
2015-01-01	0.380054000000000000