Year	Percent
2001-01-01	0.6107980000000000
2002-01-01	0.6689100000000000
2003-01-01	0.7241040000000000
2004-01-01	0.8767450000000001
2005-01-01	1.1569900000000000
2006-01-01	1.0911500000000000
2007-01-01	1.0911500000000000
2008-01-01	20.4434000000000000
2009-01-01	18.0060000000000000
2010-01-01	13.1395000000000000
2011-01-01	21.5324000000000000
2012-01-01	30.7151000000000000