Year	Percent
1994-01-01	3.5834599999999996
1995-01-01	3.1787799999999997
1996-01-01	2.8678900000000000
1997-01-01	3.6644099999999997
1998-01-01	3.6794700000000000
1999-01-01	3.4454599999999997
2000-01-01	3.0046600000000000
2001-01-01	4.8809800000000000
2002-01-01	4.6064200000000000
2003-01-01	8.3281800000000000
2004-01-01	7.0419899999999990
2005-01-01	1.2969000000000000
2006-01-01	3.0957200000000000
2007-01-01	3.8306800000000000
2008-01-01	3.4459199999999996
2009-01-01	3.2908500000000000
2010-01-01	4.3277100000000000
2011-01-01	5.4063700000000000
2012-01-01	4.5682800000000010
2013-01-01	6.6665700000000000
2014-01-01	8.6323900000000000
2015-01-01	13.4077000000000000
2016-01-01	14.7953000000000000