Year	Percent
1994-01-01	28.258700000000000
1995-01-01	24.101999999999997
1996-01-01	20.466800000000000
1997-01-01	22.861100000000000
1998-01-01	27.802300000000000
1999-01-01	23.450300000000000
2000-01-01	17.485000000000000
2001-01-01	20.577900000000000
2002-01-01	19.404000000000000
2003-01-01	27.832900000000000
2004-01-01	17.704100000000000
2005-01-01	8.674220000000000
2006-01-01	5.717050000000000
2007-01-01	4.455200000000000
2008-01-01	2.597180000000000
2009-01-01	3.002020000000000
2010-01-01	2.698230000000000
2011-01-01	2.585680000000000
2012-01-01	1.586500000000000
2013-01-01	2.435070000000000