Year	Percent
2004-01-01	25.0664000000000000
2005-01-01	19.2872000000000000
2006-01-01	13.0138000000000000
2007-01-01	34.1472000000000000
2008-01-01	9.7315300000000010
2009-01-01	3.7479199999999997
2010-01-01	4.9615100000000000
2011-01-01	0.3525800000000000
2012-01-01	1.9958900000000002