Year	Percent
1993-01-01	1.2207700000000001
1994-01-01	1.3832000000000000
1995-01-01	1.0615800000000000
1996-01-01	1.1862100000000000
1997-01-01	1.3910300000000000
1998-01-01	1.2957400000000000
1999-01-01	1.5030299999999999
2000-01-01	1.5665200000000001
2001-01-01	1.2286400000000000
2002-01-01	1.6580099999999998
2003-01-01	1.3273000000000000
2004-01-01	1.4172600000000000
2005-01-01	1.6188900000000000
2006-01-01	1.5057600000000000
2007-01-01	1.4636799999999999
2008-01-01	3.1938299999999997
2009-01-01	3.1613900000000004
2010-01-01	3.4703199999999996
2011-01-01	2.1290900000000000
2012-01-01	2.7387099999999998
2013-01-01	2.7901100000000000
2014-01-01	4.0063300000000000
2015-01-01	2.5431700000000000