Year	Percent
1995-01-01	5.755600000000000
1996-01-01	4.797690000000000
1997-01-01	4.016180000000000
1998-01-01	4.645190000000000
1999-01-01	6.221960000000000
2000-01-01	10.500600000000000
2001-01-01	10.212200000000000
2002-01-01	7.352780000000000
2003-01-01	7.095350000000000
2004-01-01	9.320280000000000
2005-01-01	13.529800000000000
2006-01-01	17.285300000000000
2007-01-01	32.431700000000000
2008-01-01	41.284400000000000
2009-01-01	37.248000000000005
2010-01-01	33.984200000000000
2011-01-01	24.757700000000000
2012-01-01	20.087500000000000