Year	Percent
1999-01-01	0.5716590000000000
2000-01-01	0.7309120000000000
2001-01-01	0.6283280000000000
2002-01-01	0.6104960000000000
2003-01-01	0.6846150000000000
2004-01-01	0.9398830000000000
2005-01-01	2.0213099999999997
2006-01-01	2.0603900000000000
2007-01-01	2.2091000000000000
2008-01-01	2.6335400000000000
2009-01-01	4.7281500000000000
2010-01-01	5.7601000000000000
2011-01-01	9.9537900000000000
2012-01-01	12.0374000000000000
2013-01-01	12.2139000000000000
2014-01-01	14.1476000000000000