Year	Percent
1994-01-01	33.391998290
1995-01-01	5.992000103
1996-01-01	17.872999190
1997-01-01	16.691999440
1998-01-01	18.041999820
1999-01-01	19.774999620
2000-01-01	20.742000580
2001-01-01	18.533000950
2002-01-01	16.191999440
2003-01-01	14.411000250
2004-01-01	14.074000360
2005-01-01	13.185999870
2006-01-01	9.213000298
2007-01-01	6.647999763
2008-01-01	5.474999905
2009-01-01	5.288000107
2010-01-01	6.758999825
2011-01-01	5.829999924
2012-01-01	5.823999882
2013-01-01	5.972000122